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ZonedDateTime of() Method in Java with Examples

Last Updated : 29 Jul, 2019

In ZonedDateTime class, there are three types of() method depending upon the parameters passed to it.

method of a

class used to get an instance of ZonedDateTime from a year, month, day, hour, minute, second, nanosecond and time-zone.all these values year, month, day, hour, minute, second, nanosecond and time-zone are passed as parameter.

public static ZonedDateTime of(int year, int month, 
                               int dayOfMonth,
                               int hour, int minute,
                               int second, int nanoOfSecond,
                               ZoneId zone)

This method accepts eight different parameters:

• year - the year to represent, from MIN_YEAR to MAX_YEAR.
• month - the month-of-year to represent, from 1 (January) to 12 (December).
• dayOfMonth - the day-of-month to represent, from 1 to 31.
• hour - the hour-of-day to represent, from 0 to 23.
• minute - the minute-of-hour to represent, from 0 to 59.
• second - the second-of-minute to represent, from 0 to 59.
• nanoOfSecond - the nano-of-second to represent, from 0 to 999, 999, 999.
• zone - the time-zone, not null.

This method returns the offset date-time.

This method throws

if the value of any field is out of range, or if the day-of-month is invalid for the month-year. Below programs illustrate the of() method:

// Java program to demonstrate
// ZonedDateTime.of() method

import java.time.*;

public class GFG {
    public static void main(String[] args)
    {

        // create an ZonedDateTime object
        // using of method
        ZonedDateTime lt
            = ZonedDateTime.of(
                2020, 12, 3, 12, 20, 59,
                90000, ZoneId.systemDefault());

        // print result
        System.out.println("ZonedDateTime : "
                           + lt);
    }
}

ZonedDateTime : 2020-12-03T12:20:59.000090Z[Etc/UTC]

method of a

class used to return an instance of ZonedDateTime from a local date, time and zone.all these localdate, localtime and zone are passed as parameter.

public static ZonedDateTime of(LocalDate date,
                               LocalTime time,
                               ZoneId zone)

This method accepts three different parameter:

• date - the local date
• time - the local time
• zone - the time-zone

This method returns the offset date-time. Below programs illustrate the of() method:

// Java program to demonstrate
// ZonedDateTime.of() method

import java.time.*;

public class GFG {
    public static void main(String[] args)
    {

        // create a LocalDateTime
        LocalDate localdate
            = LocalDate.parse("2020-12-30");

        // create a LocalTime
        LocalTime localtime
            = LocalTime.parse("17:52:49");

        // create a zoneid
        ZoneId zid
            = ZoneId.of("Europe/Paris");

        // create an ZonedDateTime object
        // using of() method
        ZonedDateTime zt
            = ZonedDateTime.of(localdate,
                               localtime, zid);

        // print result
        System.out.println("ZonedDateTime : "
                           + zt);
    }
}

ZonedDateTime : 2020-12-30T17:52:49+01:00[Europe/Paris]

method of a

class used to return an instance of ZonedDateTime from a localdatetime and zone.all these localdatetime and zone are passed as parameter.

public static ZonedDateTime of(LocalDateTime localDateTime,
                               ZoneId zone)

This method accepts two different parameter:

• localDateTime - the local date-time
• time - the local time

This method returns the offset date-time. Below programs illustrate the of() method:

// Java program to demonstrate
// ZonedDateTime.of() method

import java.time.*;

public class GFG {
    public static void main(String[] args)
    {

        // create a LocalDateTime
        LocalDateTime local
            = LocalDateTime
                  .parse("2018-11-03T12:45:30");

        // create a zoneid
        ZoneId zid = ZoneId.of("Europe/Paris");

        // create an ZonedDateTime object
        // using of()
        ZonedDateTime zt
            = ZonedDateTime.of(
                local, zid);

        // print result
        System.out.println("ZonedDateTime : "
                           + zt);
    }
}

ZonedDateTime : 2018-11-03T12:45:30+01:00[Europe/Paris]

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