The withZoneSameInstant() method of a ZonedDateTime class is used to return a copy of this ZonedDateTime object by changing the time-zone and without the instant. This method is based on retaining the same instant, thus gaps and overlaps in the local timeline have no effect on the result.
Syntax:
public ZonedDateTime withZoneSameInstant(ZoneId zone)
Parameters: This method accepts one single parameter zone the time-zone to change to. It should not be null.
Return value: This method returns a ZonedDateTime based on this date-time with the requested zone.
Exception Thrown: DateTimeException if the result exceeds the supported date range.
Example 1:
Java
// Java program to demonstrate// ZonedDateTime.withZoneSameInstant() method// Importing required classesimport java.time.*;// Main classpublic class GFG { // Main driver method public static void main(String[] args) { // Creating a ZonedDateTime object ZonedDateTime zonedDT = ZonedDateTime.parse( "2018-12-06T19:21:12.123+05:30[Asia/Calcutta]"); // Printing ZonedDateTime of Calcutta on console System.out.println("ZonedDateTime of Calcutta: " + zonedDT); // Applying withZoneSameInstant() ZonedDateTime zonedDT2 = zonedDT.withZoneSameInstant( ZoneId.of("Pacific/Fiji")); // Now printing ZonedDateTime of Fuji // after withZoneSameInstant() System.out.println("ZonedDateTime of Fuji: " + zonedDT2); }} |
Output:
ZonedDateTime of Calcutta: 2018-12-06T19:21:12.123+05:30[Asia/Calcutta] ZonedDateTime of Fuji: 2018-12-07T02:51:12.123+13:00[Pacific/Fiji]
Example 2:
Java
// Java program to Demonstrate// ZonedDateTime.withZoneSameInstant() method// Importing required classesimport java.time.*;// Main classpublic class GFG { // Main driver method public static void main(String[] args) { // Creating a ZonedDateTime object and // passing date and time of Europe/Paris ZonedDateTime zonedDT = ZonedDateTime.parse( "2018-10-25T23:12:31.123+02:00[Europe/Paris]"); // Printing ZonedDateTime of Paris on console // before applying withZoneSameInstant() method System.out.println("ZonedDateTime of Paris: " + zonedDT); // Now applying withZoneSameInstant() method ZonedDateTime zonedDT2 = zonedDT.withZoneSameInstant( ZoneId.of("Canada/Yukon")); // Printing ZonedDateTime // after applying withZoneSameInstant() System.out.println("ZonedDateTime of Yukon: " + zonedDT2); }} |
Output
ZonedDateTime of Paris: 2018-10-25T23:12:31.123+02:00[Europe/Paris] ZonedDateTime of Yukon: 2018-10-25T14:12:31.123-07:00[Canada/Yukon]
