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Display seconds since the epoch with Java Date and Time Conversion Character
To display seconds since the epoch, use the ‘s’ Date and Time conversion specifier.
System.out.printf("Seconds since epoch = %ts", d);
The above would display seconds since.
1970-01-01 00:00:00 GMT
Example
import java.util.Date; public class Demo { public static void main(String[] args) { Date d = new Date(); System.out.printf("Nanoseconds = %tN
", d); System.out.printf("Seconds since epoch = %ts", d); } }
Output
Nanoseconds = 364000000 Seconds since epoch = 1543241402
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