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ZoneId ofOffset() method in Java with Examples
  • Last Updated : 30 Jul, 2019

The ofOffset() method of the ZoneId class used to obtain an instance of ZoneId wrapping an offset.If the prefix passed in this method is “GMT”, “UTC”, or “UT” a ZoneId with the prefix then the non-zero offset is returned and If the prefix is empty “” then the ZoneOffset is returned.

Syntax:

ublic static ZoneId ofOffset(String prefix,
                              ZoneOffset offset)

Parameters: This method accepts two parameters prefix and offset where prefix represents the time-zone ID and offset represents the offset.

Return value: This method returns the zoneId.

Exception: This method throws an IllegalArgumentException if the prefix is not one of “GMT”, “UTC”, or “UT”, or “”.



Below programs illustrate the ofOffset() method:
Program 1:

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// Java program to demonstrate
// ZoneId.ofOffset() method
  
import java.time.*;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // create ZoneId object
        ZoneId zoneId
            = ZoneId.ofOffset("UTC",
                              ZoneOffset.UTC);
  
        // print result
        System.out.println("ZoneId:"
                           + zoneId);
    }
}

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Output:

ZoneId:UTC

Program 2:

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// Java program to demonstrate
// ZoneId.ofOffset() method
  
import java.time.*;
public class GFG {
    public static void main(String[] args)
    {
  
        // create ZoneId object
        ZoneId zoneId
            = ZoneId.ofOffset("GMT",
                              ZoneOffset.MAX);
  
        // print result
        System.out.println("ZoneId:"
                           + zoneId);
    }
}

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Output:

ZoneId:GMT+18:00

References:
https://docs.oracle.com/javase/10/docs/api/java/time/ZoneId.html#ofOffset(java.lang.String, java.time.ZoneOffset)

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