Java Convert Calendar to LocalTime

Tags: Java Calendar Java LocalTime Java 8

In this Java core tutorial we learn how to convert a java.util.Calendar object to a java.time.LocalTime object in Java programming language.

How to convert Calendar to LocalTime in Java

In Java, with a given Calendar object you can follow these steps to convert it to a LocalTime object.

  • Step 1: convert Calendar object to Instant object using Calendar.toInstant() method.
  • Step 2: Use the LocalTime.ofInstant(Instant instant, ZoneId zone) method to convert the above Instant object to LocalTime object.

ConvertCalendarToLocalTimeExample1.java 

import java.time.Instant;
import java.time.LocalTime;
import java.time.ZoneId;
import java.util.Calendar;
import java.util.TimeZone;

public class ConvertCalendarToLocalTimeExample1 {
    public static void main(String... args) {
        Calendar calendar = Calendar.getInstance();

        Instant instant = calendar.toInstant();
        ZoneId zoneId = TimeZone.getDefault().toZoneId();
        LocalTime localTime = LocalTime.ofInstant(instant, zoneId);

        System.out.println("Calendar hour: " + calendar.get(Calendar.HOUR_OF_DAY));
        System.out.println("Calendar minute: " + calendar.get(Calendar.MINUTE));
        System.out.println("Calendar second: " + calendar.get(Calendar.SECOND));
        System.out.println("Calendar millisecond: " + calendar.get(Calendar.MILLISECOND));
        System.out.println("LocalTime: " + localTime);
    }
}
The output as below. 
Calendar hour: 0
Calendar minute: 50
Calendar second: 15
Calendar millisecond: 684
LocalTime: 00:50:15.684

Happy Coding 😊

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