{"id":78893,"date":"2020-06-01T10:00:34","date_gmt":"2020-06-01T04:30:34","guid":{"rendered":"https:\/\/techvidvan.com\/tutorials\/?p=78893"},"modified":"2020-06-01T10:00:34","modified_gmt":"2020-06-01T04:30:34","slug":"date-and-time-in-java","status":"publish","type":"post","link":"https:\/\/techvidvan.com\/tutorials\/date-and-time-in-java\/","title":{"rendered":"How to Get Date and Time in Java – Java Date Class"},"content":{"rendered":"

Date and Time play a very important role in our life and are important factors used in every technology in this world.<\/p>\n

It is considered a very important and critical factor in the transaction systems where a single millisecond can cause a change in the system.<\/p>\n

For example, take a scenario of Railway reservation system; If a user books a ticket for a seat in a train and at the same time another user tries to book the same seat.<\/p>\n

But the time when the first user requested was stored in the database and restricts any other user to book the same seat. Here is the major role of Date and Time.<\/p>\n

In this article, we will study how the Java programming language facilitates us with the functionality of Date and Time. Java provides Date class along with the methods to format the Date and Time and also to get the current date and time.<\/p>\n

Let\u2019s start discussing Date and Time in Java.<\/p>\n

Date and Time in Java- The Date class<\/h3>\n

Java comes with the Date class that is located in the java.util package and provides many methods to perform operations with date and time.<\/p>\n

The Date class of Java implements the Cloneable, Serializable, and Comparable interfaces of Java.<\/p>\n

Constructors of the Date class<\/h3>\n

There are also six java constructors of the Date class but four of them are deprecated and therefore only two of them are used. These two constructors are listed below with the description:<\/p>\n

1. Date()<\/strong><\/p>\n

This is the non-parameterized constructor of the Date class and is used to initialize the Date class object with the current date and time.<\/p>\n

2. Date(long millisec)<\/strong><\/p>\n

It is a parameterized constructor of the Date class and we pass one argument to it in the form of milliseconds.<\/p>\n

This constructor creates for us an object of the Date class for the given input milliseconds since midnight, January 1, 1970<\/p>\n

Methods of Java Date class<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
S.N.<\/b><\/td>\nMethod<\/b><\/td>\nDescription<\/b><\/td>\n<\/tr>\n
1<\/span><\/td>\nboolean<\/span> after<\/b>(Date date)<\/span><\/td>\nThis method returns true if the current object of the Date class contains the date which is later than the date specified in the parameter of the method, otherwise, it returns false.<\/span><\/td>\n<\/tr>\n
2<\/span><\/td>\nboolean <\/span>before<\/b>(Date date)<\/span><\/td>\nThis method returns true if the current object of the Date class contains the date which is earlier than the date specified in the parameter of the method, otherwise, it returns false.<\/span><\/td>\n<\/tr>\n
3<\/span><\/td>\nObject<\/span> clone<\/b>( )<\/span><\/td>\nThis method creates a duplicate copy of the invoking Date class object.<\/span><\/td>\n<\/tr>\n
4<\/span><\/td>\nint <\/span>compareTo(Date date)<\/b><\/td>\nThis method is used to compare the value of the invoking object with the specified date. It returns 0 if the values are equal, a negative value if the invoking object is earlier than the date and a positive value if the invoking object is later than date.<\/span><\/td>\n<\/tr>\n
5<\/span><\/td>\nint<\/span> compareTo(Object obj)<\/b><\/td>\nThis method works identical to the compareTo(Date) method if the object is of Date type. If it is not, then the method throws the ClassCastException.<\/span><\/td>\n<\/tr>\n
6<\/span><\/td>\nboolean<\/span> equals<\/b>(Object date)<\/span><\/td>\nThis method returns true if the invoking object of the Date class contains the same time and date as the one specified by date, otherwise, it returns false.<\/span><\/td>\n<\/tr>\n
7<\/span><\/td>\nlong <\/span>getTime<\/b>( )<\/span><\/td>\nThis method returns the number of milliseconds that have elapsed since January 1, 1970.<\/span><\/td>\n<\/tr>\n
8<\/span><\/td>\nint<\/span> hashCode<\/b>( )<\/span><\/td>\nThis method gives the hash code value for the invoking Date object.<\/span><\/td>\n<\/tr>\n
9<\/span><\/td>\nvoid <\/span>setTime<\/b>(long time)<\/span><\/td>\nThis method is used to set the time and date as specified by time, which represents an elapsed time in milliseconds from midnight, January 1, 1970.<\/span><\/td>\n<\/tr>\n
10<\/span><\/td>\nString<\/span> toString<\/b>( )<\/span><\/td>\nReturns the String representation of the invoking Date class object.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Getting Current Date and time of the system<\/h3>\n

We can easily retrieve the current date and time of our system using two ways:<\/p>\n

    \n
  1. Using the Date class<\/li>\n
  2. Using the Calendar class<\/li>\n<\/ol>\n

    1. Using Date class in Java<\/h4>\n

    This is the easiest method to get the current date and time of the system. We can create the object of the Date class and call the toString() method from this object to get the current date and time.<\/p>\n

    Code to get the current date and time using the Date class:<\/strong><\/p>\n

    package com.techvidvan.dateandtime;\nimport java.util.Date;\npublic class DateDemo {\n  public static void main(String args[]) {\n    \/\/ Instantiating a Date object\n    Date date = new Date();\n\n    \/\/ display time and date using toString() method\n    System.out.println(\"The current date and time is: \");\n    System.out.println(date.toString());\n  }\n}<\/pre>\n
    Output:<\/strong>
    \nThe current date and time is:
    \nTue Apr 07 03:20:26 IST 2020<\/p>\n
    2. Using Calendar class<\/h4>\n
    We can also use the Calendar class to get the current date and time.<\/p>\n
    We create the instance of the Calendar class using the getInstance() method and then call the getTime() method to get the current date and time.<\/p>\n
    Code to get the current date and time using the Calendar class:<\/strong><\/p>\n
    package com.techvidvan.dateandtime;\nimport java.util.Date;\nimport java.util.Calendar;\npublic class CalendarDemo {\n  public static void main(String args[]) {\n    \/\/ Instantiating a Calendar object\n    Calendar c = Calendar.getInstance();\n    \/\/ displaying the  time and date using getTime()\n    System.out.println(\"The current date and time is: \");\n    System.out.println(c.getTime());\n  }\n}<\/pre>\n
    Output:<\/strong>
    \nThe current date and time is:
    \nTue Apr 07 03:29:04 IST 2020<\/p>\n
    Date Formatting Using SimpleDateFormat class<\/h3>\n
    We can also get the Date and time in the desired format by using the SimpledateFormat class which is a concrete class that allows us to format and parse the date and time in the desired manner.<\/p>\n
    This class is located in the java.text package.<\/p>\n
    Code to format the date and time using the SimpleDateFormat class:<\/strong><\/p>\n
    package com.techvidvan.dateandtime;\nimport java.util.Date;\nimport java.text.DateFormat;\nimport java.text.SimpleDateFormat;\nimport java.util.Calendar;\n\npublic class GettingCurrentDate {\n  public static void main(String[] args) {\n    \/\/getting current date and time using Date class\n    System.out.println(\"Using Date class:\");\n    System.out.println(\"The formatted date and time is:\");\n    DateFormat df = new SimpleDateFormat(\"dd\/MM\/yy HH:mm:ss\");\n    Date dateobj = new Date();\n    System.out.println(df.format(dateobj));\n\n    \/\/getting current date time using calendar class \n    System.out.println(\"\\nUsing Calendar class:\");\n    System.out.println(\"The formatted date and time is:\");\n    Calendar calobj = Calendar.getInstance();\n    System.out.println(df.format(calobj.getTime()));\n  }\n}<\/pre>\n
    Output:<\/strong>
    \nUsing Date class:
    \nThe formatted date and time is:
    \n07\/04\/20 04:10:28<\/p>\n
    Using Calendar class:
    \nThe formatted date and time is:
    \n07\/04\/20 04:10:28<\/p>\n
    So, this is how we can get the formatted date and time.<\/p>\n
    SimpleDateFormat Format Codes<\/h3>\n
    We can also use some codes to specify the time format using a time pattern string. There are some ASCII letters that are reserved as pattern letters, which are listed in the below table with examples:<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    Character<\/b><\/td>\nDescription<\/b><\/td>\nExample<\/b><\/td>\n<\/tr>\n
    G<\/span><\/td>\nEra designator<\/span><\/td>\nAD or BC<\/span><\/td>\n<\/tr>\n
    y<\/span><\/td>\nYear in four digits<\/span><\/td>\n2019<\/span><\/td>\n<\/tr>\n
    M<\/span><\/td>\nMonth in year<\/span><\/td>\nMarch or 03<\/span><\/td>\n<\/tr>\n
    d<\/span><\/td>\nDay in month<\/span><\/td>\n25<\/span><\/td>\n<\/tr>\n
    h<\/span><\/td>\nHour in A.M.\/P.M. (1~12)<\/span><\/td>\n8<\/span><\/td>\n<\/tr>\n
    H<\/span><\/td>\nHour in day (0~23)<\/span><\/td>\n20<\/span><\/td>\n<\/tr>\n
    m<\/span><\/td>\nMinute in hour<\/span><\/td>\n48<\/span><\/td>\n<\/tr>\n
    s<\/span><\/td>\nSecond in minute<\/span><\/td>\n59<\/span><\/td>\n<\/tr>\n
    S<\/span><\/td>\nMillisecond<\/span><\/td>\n238<\/span><\/td>\n<\/tr>\n
    E<\/span><\/td>\nDay in week<\/span><\/td>\nFriday<\/span><\/td>\n<\/tr>\n
    D<\/span><\/td>\nDay in year<\/span><\/td>\n250<\/span><\/td>\n<\/tr>\n
    F<\/span><\/td>\nDay of week in month<\/span><\/td>\n2 (second Wed. in July)<\/span><\/td>\n<\/tr>\n
    w<\/span><\/td>\nWeek in year<\/span><\/td>\n25<\/span><\/td>\n<\/tr>\n
    W<\/span><\/td>\nWeek in month<\/span><\/td>\n3<\/span><\/td>\n<\/tr>\n
    a<\/span><\/td>\nA.M.\/P.M. marker<\/span><\/td>\nPM<\/span><\/td>\n<\/tr>\n
    k<\/span><\/td>\nHour in day (1~24)<\/span><\/td>\n24<\/span><\/td>\n<\/tr>\n
    K<\/span><\/td>\nHour in A.M.\/P.M. (0~11)<\/span><\/td>\n10<\/span><\/td>\n<\/tr>\n
    z<\/span><\/td>\nTime zone<\/span><\/td>\nIndian Standard Time<\/span><\/td>\n<\/tr>\n
    ‘<\/span><\/td>\nEscape for text<\/span><\/td>\nDelimiter<\/span><\/td>\n<\/tr>\n
    “<\/span><\/td>\nSingle quote<\/span><\/td>\n`<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    Let’s see an example where we have used some of the codes in the program:<\/p>\n
    package com.techvidvan.dateandtime;\nimport java.util. * ;\nimport java.text. * ;\npublic class FormatCodesDemo {\n  public static void main(String args[]) {\n    Date date = new Date();\n    SimpleDateFormat formatObj = new SimpleDateFormat(\"E W yyyy.MM.dd 'at' hh:mm:ss a zzz\");\n    System.out.println(\"Current Date: \" + formatObj.format(date));\n  }\n}<\/pre>\n
    Output:<\/strong>
    \nCurrent Date: Tue 2 2020.04.07 at 05:04:48 PM IST<\/p>\n
    Java Date and Time Conversion Characters<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    Character<\/b><\/td>\nDescription<\/b><\/td>\nExample<\/b><\/td>\n<\/tr>\n
    c<\/span><\/td>\nComplete date and time<\/span><\/td>\nWed April 08 09:06:54 IST 2020<\/span><\/td>\n<\/tr>\n
    F<\/span><\/td>\nISO 8601 date<\/span><\/td>\n2020-08-09<\/span><\/td>\n<\/tr>\n
    D<\/span><\/td>\nU.S. formatted date (month\/day\/year)<\/span><\/td>\n12\/29\/2014<\/span><\/td>\n<\/tr>\n
    T<\/span><\/td>\n24-hour time<\/span><\/td>\n17:05:18<\/span><\/td>\n<\/tr>\n
    r<\/span><\/td>\n12-hour time<\/span><\/td>\n03:45:19 pm<\/span><\/td>\n<\/tr>\n
    R<\/span><\/td>\n24-hour time, no seconds<\/span><\/td>\n18:54<\/span><\/td>\n<\/tr>\n
    Y<\/span><\/td>\nFour-digit year (with leading zeroes)<\/span><\/td>\n2019<\/span><\/td>\n<\/tr>\n
    y<\/span><\/td>\nLast two digits of the year (with leading zeroes)<\/span><\/td>\n19<\/span><\/td>\n<\/tr>\n
    C<\/span><\/td>\nFirst two digits of the year (with leading zeroes)<\/span><\/td>\n20<\/span><\/td>\n<\/tr>\n
    B<\/span><\/td>\nFull month name<\/span><\/td>\nJune<\/span><\/td>\n<\/tr>\n
    b<\/span><\/td>\nAbbreviated month name<\/span><\/td>\nMar<\/span><\/td>\n<\/tr>\n
    m<\/span><\/td>\nTwo-digit month (with leading zeroes)<\/span><\/td>\n02<\/span><\/td>\n<\/tr>\n
    d<\/span><\/td>\nTwo-digit day (with leading zeroes)<\/span><\/td>\n03<\/span><\/td>\n<\/tr>\n
    e<\/span><\/td>\nTwo-digit day (without leading zeros)<\/span><\/td>\n8<\/span><\/td>\n<\/tr>\n
    A<\/span><\/td>\nFull weekday name<\/span><\/td>\nSaturday<\/span><\/td>\n<\/tr>\n
    a<\/span><\/td>\nAbbreviated weekday name<\/span><\/td>\nSat<\/span><\/td>\n<\/tr>\n
    j<\/span><\/td>\nThree-digit day of year (with leading zeroes)<\/span><\/td>\n068<\/span><\/td>\n<\/tr>\n
    H<\/span><\/td>\nTwo-digit hour (with leading zeroes), between 00 and 23<\/span><\/td>\n20<\/span><\/td>\n<\/tr>\n
    k<\/span><\/td>\nTwo-digit hour (without leading zeros), between 0 and 23<\/span><\/td>\n18<\/span><\/td>\n<\/tr>\n
    I<\/span><\/td>\nTwo-digit hour (with leading zeros), between 01 and 12<\/span><\/td>\n06<\/span><\/td>\n<\/tr>\n
    l<\/span><\/td>\nTwo-digit hour (without leading zeros), between 1 and 12<\/span><\/td>\n6<\/span><\/td>\n<\/tr>\n
    M<\/span><\/td>\nTwo-digit minutes (with leading zeroes)<\/span><\/td>\n05<\/span><\/td>\n<\/tr>\n
    S<\/span><\/td>\nTwo-digit seconds (with leading zeroes)<\/span><\/td>\n19<\/span><\/td>\n<\/tr>\n
    L<\/span><\/td>\nThree-digit milliseconds (with leading zeroes)<\/span><\/td>\n047<\/span><\/td>\n<\/tr>\n
    N<\/span><\/td>\nNine-digit nanoseconds (with leading zeroes)<\/span><\/td>\n047000000<\/span><\/td>\n<\/tr>\n
    P<\/span><\/td>\nUppercase morning or afternoon marker<\/span><\/td>\nPM<\/span><\/td>\n<\/tr>\n
    p<\/span><\/td>\nLowercase morning or afternoon marker<\/span><\/td>\npm<\/span><\/td>\n<\/tr>\n
    z<\/span><\/td>\nRFC 822 numeric offset from GMT<\/span><\/td>\n-0800<\/span><\/td>\n<\/tr>\n
    Z<\/span><\/td>\nTime zone<\/span><\/td>\nIST<\/span><\/td>\n<\/tr>\n
    s<\/span><\/td>\nSeconds since 1970-01-01 00:00:00 GMT<\/span><\/td>\n1078884319<\/span><\/td>\n<\/tr>\n
    Q<\/span><\/td>\nMilliseconds since 1970-01-01 00:00:00 GMT<\/span><\/td>\n1078884319047<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    Date Formatting Using printf<\/h3>\n
    We can also format the date using the printf method. We have to use a two-letter format, starting with t and ending in any one of the letters of the above table.<\/p>\n
    Let\u2019s understand this concept with a program:<\/p>\n
    Code to format the date using the printf method:<\/strong><\/p>\n
    package com.techvidvan.dateandtime;\nimport java.util.Date;\npublic class DateDemo {\n  public static void main(String args[]) {\n    \/\/ Instantiating a Date object\n    Date date = new Date();\n\n    \/\/ displaying time and date\n    String string = String.format(\"Current Date\/Time is: %tc\", date);\n    \/\/Using the printf method\n    System.out.printf(string);\n  }\n}<\/pre>\n
    Output:<\/strong>
    \nCurrent Date\/Time is: Tue Apr 07 05:20:59 IST 2020<\/p>\n
    You can also use the <flag alternatively. This is shown in below example:<\/p>\n
    package com.techvidvan.dateandtime;\nimport java.util.Date;\npublic class DateDemo {\n  public static void main(String args[]) {\n    \/\/ Instantiate a Date object\n    Date date = new Date();\n\n    \/\/ display formatted date\n    System.out.printf(\"%s %tB %<te, %<tY\", \"Today's date:\", date);\n    System.out.printf(\"%s %tr \", \"\\nCurrent time:\", date);\n    System.out.printf(\"%s %tZ \", \"\\nCurrent Zone:\", date);\n  }\n}<\/pre>\n
    Output:<\/strong>
    \nToday’s date: April 7, 2020
    \nCurrent time: 05:35:47 PM
    \nCurrent Zone: IST<\/p>\n
    Parsing Strings into Dates<\/h3>\n
    There are also some additional methods in SimpleDateFormat; one of them is the parse() method that is used to parse a string according to the format stored in the given SimpleDateFormat object.<\/p>\n
    Code to parse the String into date:<\/strong><\/p>\n
    package com.techvidvan.dateandtime;\nimport java.util. * ;\nimport java.text. * ;\n\npublic class DateDemo {\n  public static void main(String args[]) {\n    SimpleDateFormat ft = new SimpleDateFormat(\"yyyy-MM-dd\");\n    String input = \"2020-07-04\";\n\n    System.out.println(\"Input string is: \" + input);\n\n    Date date;\n    try {\n      date = ft.parse(input);\n      System.out.println(\"Parsed string is :\");\n      System.out.println(date);\n    }\n    catch(ParseException e) {\n      System.out.println(\"Unparseable string\");\n    }\n  }\n}<\/pre>\n
    Output:<\/strong>
    \nInput string is: 2020-07-04
    \nParsed string is :
    \nSat Jul 04 00:00:00 IST 2020<\/p>\n
    Sleeping for a While<\/h3>\n
    We can also use the sleep() method of Thread class to sleep for any duration of time starting from one ms to the lifetime of your computer.<\/p>\n
    For example, in the below code the program will sleep for 5 seconds:<\/p>\n
    Code to sleep for a while:<\/strong><\/p>\n
    package com.techvidvan.dateandtime;\nimport java.util. * ;\npublic class SleepDemo {\n  public static void main(String args[]) {\n    try {\n      System.out.println(\"Before sleeping:\");\n      System.out.println(new Date());\n      \/\/sleeping for 5 seconds \n      Thread.sleep(5000);\n      System.out.println(\"After sleeping for 5 seconds:\");\n      System.out.println(new Date());\n    }\n    catch(Exception e) {\n      System.out.println(\"Failed!\");\n    }\n  }\n}<\/pre>\n
    Output:<\/strong>
    \nBefore sleeping:
    \nTue Apr 07 05:07:23 IST 2020
    \nAfter sleeping for 5 seconds:
    \nTue Apr 07 12:07:28 IST 2020<\/p>\n
    GregorianCalendar Class<\/h3>\n
    The GregorianCalendar is a concrete implementation of the Calendar class that we studied in the previous section of this article.<\/p>\n
    The GregorianCalendar class is initialized with the current date and time with the help of getInstance() method of the Calendar class. It\u00a0 defines two fields: AD(After Death) and BC(Before Christ).<\/p>\n
    These two fields represent the two eras defined by the real-life Gregorian calendar.<\/p>\n
    There are some constructors of the GregorianCalendar class which are\u2212<\/p>\n\n\n\n\n\n\n\n\n\n\n
    S.N.<\/b><\/td>\nConstructor\u00a0<\/b><\/td>\n Description<\/b><\/td>\n<\/tr>\n
    1<\/span><\/td>\nGregorianCalendar()<\/span><\/td>\nConstructs a default GregorianCalendar using the current time in the default time zone with the default locale.<\/span><\/td>\n<\/tr>\n
    2<\/span><\/td>\nGregorianCalendar(int year, int month, int date)<\/span><\/td>\nConstructs a GregorianCalendar with the given date set in the default time zone with the default locale.<\/span><\/td>\n<\/tr>\n
    3<\/span><\/td>\nGregorianCalendar(int year, int month, int date, int hour, int minute)<\/span><\/td>\nConstructs a GregorianCalendar with the given date and time set for the default time zone with the default locale.<\/span><\/td>\n<\/tr>\n
    4<\/span><\/td>\nGregorianCalendar(int year, int month, int date, int hour, int minute, int second)<\/span><\/td>\nConstructs a GregorianCalendar with the given date and time set for the default time zone with the default locale.<\/span><\/td>\n<\/tr>\n
    5<\/span><\/td>\nGregorianCalendar(Locale aLocale)<\/span><\/td>\nConstructs a GregorianCalendar based on the current time in the default time zone with the given locale.<\/span><\/td>\n<\/tr>\n
    6<\/span><\/td>\nGregorianCalendar(TimeZone zone)<\/span><\/td>\nConstructs a GregorianCalendar based on the current time in the given time zone with the default locale.<\/span><\/td>\n<\/tr>\n
    7<\/span><\/td>\nGregorianCalendar(TimeZone zone, Locale aLocale)<\/span><\/td>\nConstructs a GregorianCalendar based on the current time in the given time zone with the given locale.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    GregorianCalendar Support Methods<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    S.N.<\/b><\/td>\nMethod\u00a0<\/b><\/td>\n Description<\/b><\/td>\n<\/tr>\n
    1<\/span><\/td>\nvoid add(int field, int amount)<\/span><\/td>\nAdds the specified (signed) amount of time to the given time field, based on the calendar’s rules.<\/span><\/td>\n<\/tr>\n
    2<\/span><\/td>\nprotected void computeFields()<\/span><\/td>\nConverts UTC as milliseconds to time field values.<\/span><\/td>\n<\/tr>\n
    3<\/span><\/td>\nprotected void computeTime()<\/span><\/td>\nOverrides Calendar Converts time field values to UTC as milliseconds.<\/span><\/td>\n<\/tr>\n
    4<\/span><\/td>\nboolean equals(Object obj)<\/span><\/td>\nCompare this GregorianCalendar to an object reference.<\/span><\/td>\n<\/tr>\n
    5<\/span><\/td>\nint get(int field)<\/span><\/td>\nGets the value for a given time field.<\/span><\/td>\n<\/tr>\n
    6<\/span><\/td>\nint getActualMaximum(int field)<\/span><\/td>\nReturns the maximum value that this field could have, given the current date.<\/span><\/td>\n<\/tr>\n
    7<\/span><\/td>\nint getActualMinimum(int field)<\/span><\/td>\nReturns the minimum value that this field could have, given the current date.<\/span><\/td>\n<\/tr>\n
    8<\/span><\/td>\nint getGreatestMinimum(int field)<\/span><\/td>\nReturns the highest minimum value for the given field if it varies.<\/span><\/td>\n<\/tr>\n
    9<\/span><\/td>\nDate getGregorianChange()<\/span><\/td>\nGets the Gregorian Calendar change date.<\/span><\/td>\n<\/tr>\n
    10<\/span><\/td>\nint getLeastMaximum(int field)<\/span><\/td>\nReturns the lowest maximum value for the given field if it varies.<\/span><\/td>\n<\/tr>\n
    11<\/span><\/td>\nint getMaximum(int field)<\/span><\/td>\nReturns maximum value for the given field.<\/span><\/td>\n<\/tr>\n
    12<\/span><\/td>\nDate getTime()<\/span><\/td>\nGets this Calendar’s current time.<\/span><\/td>\n<\/tr>\n
    13<\/span><\/td>\nlong getTimeInMillis()<\/span><\/td>\nGet this Calendar’s current time as a long.<\/span><\/td>\n<\/tr>\n
    14<\/span><\/td>\nTimeZone getTimeZone()<\/span><\/td>\nGets the time zone.<\/span><\/td>\n<\/tr>\n
    15<\/span><\/td>\nint getMinimum(int field)<\/span><\/td>\nReturns minimum value for the given field.<\/span><\/td>\n<\/tr>\n
    16<\/span><\/td>\nint hashCode()<\/span><\/td>\nOverrides hashCode.<\/span><\/td>\n<\/tr>\n
    17<\/span><\/td>\nboolean isLeapYear(int year)<\/span><\/td>\nDetermines if the given year is a leap year.<\/span><\/td>\n<\/tr>\n
    18<\/span><\/td>\nvoid roll(int field, boolean up)<\/span><\/td>\nAdds or subtracts (up\/down) a single unit of time on the given time field without changing larger fields.<\/span><\/td>\n<\/tr>\n
    19<\/span><\/td>\nvoid set(int field, int value)<\/span><\/td>\nSets the time field with the given value.<\/span><\/td>\n<\/tr>\n
    20<\/span><\/td>\nvoid set(int year, int month, int date)<\/span><\/td>\nSets the values for the fields year, month, and date.<\/span><\/td>\n<\/tr>\n
    21<\/span><\/td>\nvoid set(int year, int month, int date, int hour, int minute)<\/span><\/td>\nSets the values for the fields year, month, date, hour, and minute.<\/span><\/td>\n<\/tr>\n
    22<\/span><\/td>\nvoid set(int year, int month, int date, int hour, int minute, int second)<\/span><\/td>\nSets the values for the fields year, month, date, hour, minute, and second.<\/span><\/td>\n<\/tr>\n
    23<\/span><\/td>\nvoid setGregorianChange(Date date)<\/span><\/td>\nSets the GregorianCalendar change date.<\/span><\/td>\n<\/tr>\n
    24<\/span><\/td>\nvoid setTime(Date date)<\/span><\/td>\nSets this Calendar’s current time with the given Date.<\/span><\/td>\n<\/tr>\n
    25<\/span><\/td>\nvoid setTimeInMillis(long millis)<\/span><\/td>\nSets this Calendar’s current time from the given long value.<\/span><\/td>\n<\/tr>\n
    26<\/span><\/td>\nvoid setTimeZone(TimeZone value)<\/span><\/td>\nSets the time zone with the given time zone value.<\/span><\/td>\n<\/tr>\n
    27<\/span><\/td>\nString toString()<\/span><\/td>\nReturns a string representation of this calendar.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    Code to understand the Gregorgian Calendar:<\/strong><\/p>\n
    package com.techvidvan.dateandtime;\nimport java.util. * ;\npublic class GregorianCalendar Demo {\n  public static void main(String args[]) {\n    String months[] = {\n      \"Jan\",\n      \"Feb\",\n      \"Mar\",\n      \"Apr\",\n      \"May\",\n      \"Jun\",\n      \"Jul\",\n      \"Aug\",\n      \"Sep\",\n      \"Oct\",\n      \"Nov\",\n      \"Dec\"\n    };\n\n    int year;\n\n    GregorianCalendar gCalendar = new GregorianCalendar();\n\n    \/\/Display the current time and date information.\n    System.out.print(\"Today is: \");\n    System.out.print(months[gCalendar.get(Calendar.MONTH)]);\n    System.out.print(\" \" + gCalendar.get(Calendar.DATE) + \" \");\n    System.out.println(year = gCalendar.get(Calendar.YEAR));\n    System.out.print(\"Current time: \");\n    System.out.print(gCalendar.get(Calendar.HOUR) + \":\");\n    System.out.print(gCalendar.get(Calendar.MINUTE) + \":\");\n    System.out.println(gCalendar.get(Calendar.SECOND));\n\n    \/\/ Test if the current year is a leap year\n    if (gCalendar.isLeapYear(year)) {\n      System.out.println(\"The current year is a leap year\");\n    }\n    else {\n      System.out.println(\"The current year is not a leap year\");\n    }\n  }\n}<\/pre>\n
    Output:<\/strong>
    \nToday is: Apr 7 2020
    \nTime: 18:6:45
    \nThe current year is a leap year<\/p>\n
    Conclusion<\/h3>\n
    Here we come to the end of the article on Date and Time in Java. The Date class of java.util package plays a very important role in performing operations with date and time.<\/p>\n
    We can use the SimpleFormatClass and its codes to format the date in the desired manner. We can also sleep the system for some seconds using the sleep method of Thread class.<\/p>\n","protected":false},"excerpt":{"rendered":"
    Date and Time play a very important role in our life and are important factors used in every technology in this world. It is considered a very important and critical factor in the transaction...<\/p>\n","protected":false},"author":1,"featured_media":78948,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[183],"tags":[2734,2735,2736,2737,2738,2739,2740,2741],"class_list":["post-78893","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-java","tag-date-and-time-in-java","tag-date-time-format-java","tag-java-date-and-time","tag-java-date-class","tag-java-date-examples","tag-java-datetime","tag-java-datetime-format","tag-time-in-java"],"yoast_head":"\nHow to Get Date and Time in Java - Java Date Class - TechVidvan<\/title>\n<meta name=\"description\" content=\"Date and Time in Java - Java Date Class and methods, how to get current date and time of the system, date formatting, Date and Time Conversion Characters\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/techvidvan.com\/tutorials\/date-and-time-in-java\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Get Date and Time in Java - Java Date Class - TechVidvan\" \/>\n<meta property=\"og:description\" content=\"Date and Time in Java - Java Date Class and methods, how to get current date and time of the system, date formatting, Date and Time Conversion Characters\" \/>\n<meta property=\"og:url\" content=\"https:\/\/techvidvan.com\/tutorials\/date-and-time-in-java\/\" \/>\n<meta property=\"og:site_name\" content=\"TechVidvan\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/TechVidvan\/\" \/>\n<meta property=\"article:published_time\" content=\"2020-06-01T04:30:34+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/techvidvan.com\/tutorials\/wp-content\/uploads\/2020\/05\/Java-date-time.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"802\" \/>\n\t<meta property=\"og:image:height\" content=\"420\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"TechVidvan Team\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@vidvantech\" \/>\n<meta name=\"twitter:site\" content=\"@vidvantech\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"TechVidvan Team\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"12 minutes\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"How to Get Date and Time in Java - Java Date Class - TechVidvan","description":"Date and Time in Java - Java Date Class and methods, how to get current date and time of the system, date formatting, Date and Time Conversion Characters","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/techvidvan.com\/tutorials\/date-and-time-in-java\/","og_locale":"en_US","og_type":"article","og_title":"How to Get Date and Time in Java - Java Date Class - TechVidvan","og_description":"Date and Time in Java - Java Date Class and methods, how to get current date and time of the system, date formatting, Date and Time Conversion Characters","og_url":"https:\/\/techvidvan.com\/tutorials\/date-and-time-in-java\/","og_site_name":"TechVidvan","article_publisher":"https:\/\/www.facebook.com\/TechVidvan\/","article_published_time":"2020-06-01T04:30:34+00:00","og_image":[{"width":802,"height":420,"url":"https:\/\/techvidvan.com\/tutorials\/wp-content\/uploads\/2020\/05\/Java-date-time.jpg","type":"image\/jpeg"}],"author":"TechVidvan Team","twitter_card":"summary_large_image","twitter_creator":"@vidvantech","twitter_site":"@vidvantech","twitter_misc":{"Written by":"TechVidvan Team","Est. reading time":"12 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/techvidvan.com\/tutorials\/date-and-time-in-java\/#article","isPartOf":{"@id":"https:\/\/techvidvan.com\/tutorials\/date-and-time-in-java\/"},"author":{"name":"TechVidvan Team","@id":"https:\/\/techvidvan.com\/tutorials\/#\/schema\/person\/e9c26e74dd3d87421f7ada9433b8cd22"},"headline":"How to Get Date and Time in Java – Java Date Class","datePublished":"2020-06-01T04:30:34+00:00","mainEntityOfPage":{"@id":"https:\/\/techvidvan.com\/tutorials\/date-and-time-in-java\/"},"wordCount":2150,"commentCount":0,"publisher":{"@id":"https:\/\/techvidvan.com\/tutorials\/#organization"},"image":{"@id":"https:\/\/techvidvan.com\/tutorials\/date-and-time-in-java\/#primaryimage"},"thumbnailUrl":"https:\/\/techvidvan.com\/tutorials\/wp-content\/uploads\/2020\/05\/Java-date-time.jpg","keywords":["date and time in java","date time format java","Java Date and Time","java date class","Java Date examples","java datetime","java datetime format","time in java"],"articleSection":["Java Tutorials"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/techvidvan.com\/tutorials\/date-and-time-in-java\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/techvidvan.com\/tutorials\/date-and-time-in-java\/","url":"https:\/\/techvidvan.com\/tutorials\/date-and-time-in-java\/","name":"How to Get Date and Time in Java - Java Date Class - TechVidvan","isPartOf":{"@id":"https:\/\/techvidvan.com\/tutorials\/#website"},"primaryImageOfPage":{"@id":"https:\/\/techvidvan.com\/tutorials\/date-and-time-in-java\/#primaryimage"},"image":{"@id":"https:\/\/techvidvan.com\/tutorials\/date-and-time-in-java\/#primaryimage"},"thumbnailUrl":"https:\/\/techvidvan.com\/tutorials\/wp-content\/uploads\/2020\/05\/Java-date-time.jpg","datePublished":"2020-06-01T04:30:34+00:00","description":"Date and Time in Java - Java Date Class and methods, how to get current date and time of the system, date formatting, Date and Time Conversion Characters","breadcrumb":{"@id":"https:\/\/techvidvan.com\/tutorials\/date-and-time-in-java\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/techvidvan.com\/tutorials\/date-and-time-in-java\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/techvidvan.com\/tutorials\/date-and-time-in-java\/#primaryimage","url":"https:\/\/techvidvan.com\/tutorials\/wp-content\/uploads\/2020\/05\/Java-date-time.jpg","contentUrl":"https:\/\/techvidvan.com\/tutorials\/wp-content\/uploads\/2020\/05\/Java-date-time.jpg","width":802,"height":420,"caption":"Date and Time in java"},{"@type":"BreadcrumbList","@id":"https:\/\/techvidvan.com\/tutorials\/date-and-time-in-java\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/techvidvan.com\/tutorials\/"},{"@type":"ListItem","position":2,"name":"How to Get Date and Time in Java – Java Date Class"}]},{"@type":"WebSite","@id":"https:\/\/techvidvan.com\/tutorials\/#website","url":"https:\/\/techvidvan.com\/tutorials\/","name":"TechVidvan Blogs","description":"","publisher":{"@id":"https:\/\/techvidvan.com\/tutorials\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/techvidvan.com\/tutorials\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/techvidvan.com\/tutorials\/#organization","name":"TechVidvan","url":"https:\/\/techvidvan.com\/tutorials\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/techvidvan.com\/tutorials\/#\/schema\/logo\/image\/","url":"https:\/\/techvidvan.com\/tutorials\/wp-content\/uploads\/2024\/03\/techvidvan-logo-200x50-1.webp","contentUrl":"https:\/\/techvidvan.com\/tutorials\/wp-content\/uploads\/2024\/03\/techvidvan-logo-200x50-1.webp","width":200,"height":50,"caption":"TechVidvan"},"image":{"@id":"https:\/\/techvidvan.com\/tutorials\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/TechVidvan\/","https:\/\/x.com\/vidvantech"]},{"@type":"Person","@id":"https:\/\/techvidvan.com\/tutorials\/#\/schema\/person\/e9c26e74dd3d87421f7ada9433b8cd22","name":"TechVidvan Team","description":"The TechVidvan Team delivers practical, beginner-friendly tutorials on programming, Java, Python, C++, DSA, AI, ML, data Science, Android, Flutter, MERN, Web Development, and technology. Our experts are here to help you upskill and excel in today\u2019s tech industry."}]}},"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/techvidvan.com\/tutorials\/wp-json\/wp\/v2\/posts\/78893","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/techvidvan.com\/tutorials\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/techvidvan.com\/tutorials\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/techvidvan.com\/tutorials\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/techvidvan.com\/tutorials\/wp-json\/wp\/v2\/comments?post=78893"}],"version-history":[{"count":0,"href":"https:\/\/techvidvan.com\/tutorials\/wp-json\/wp\/v2\/posts\/78893\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/techvidvan.com\/tutorials\/wp-json\/wp\/v2\/media\/78948"}],"wp:attachment":[{"href":"https:\/\/techvidvan.com\/tutorials\/wp-json\/wp\/v2\/media?parent=78893"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/techvidvan.com\/tutorials\/wp-json\/wp\/v2\/categories?post=78893"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/techvidvan.com\/tutorials\/wp-json\/wp\/v2\/tags?post=78893"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}