In this post, we can discuss how to get current date and time in Java.
These are some of the main new date classes that were introduced in Java 8.
- Instant represents date and time in UTC.
- LocalDate represents date.
- LocalTime represents time.
- LocalDateTime represents date and time without time zone.
- OffsetDateTime represents date and time with time zone offset.
- ZonedDateTime represents date and time with time zone information.
now() method can be used to find the current date and/or time in all of these classes.
Default system time zone is used when now() method is called for LocalDateTime, LocalDate, and LocalTime classes.
Example:
import java.time.Instant;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.OffsetDateTime;
import java.time.ZonedDateTime;
class DateTimeExample
{
public static void main ( String[] args )
{
System.out.println( “Instant: ” + Instant.now() );
System.out.println( “LocalDate: ” + LocalDate.now() );
System.out.println( “LocalTime: ” + LocalTime.now() );
System.out.println( “LocalDateTime: ” + LocalDateTime.now() );
System.out.println( “OffsetDateTime (Default): ” + OffsetDateTime.now() );
System.out.println( “OffsetDateTime (New_York): ” + OffsetDateTime.now( ZoneId.of( “America/New_York” ) ) );
System.out.println( “ZonedDateTime (Default): ” + ZonedDateTime.now() );
System.out.println( “ZonedDateTime (New_York): ” + ZonedDateTime.now( ZoneId.of( “America/New_York” ) ) );
}
}
Output:
Instant: 2021-01-02T16:00:50.337Z
LocalDate: 2021-01-02
LocalTime: 21:30:50.525
LocalDateTime: 2021-01-02T21:30:50.525
OffsetDateTime (Default): 2021-01-02T21:30:50.525+05:30
OffsetDateTime (New_York): 2021-01-02T11:00:50.-05:00
ZonedDateTime (Default): 2021-01-02T21:30:50.525+05:30[Asia/Calcutta]|
ZonedDateTime (New_York): 2021-01-02T11:00:50.525-05:00[America/New_York]
If ZoneId is not specified, application/JVM time zone is used for OffsetDateTime and ZonedDateTime.
In these examples the default application time zone is ‘Asia/Calcutta’, and no formatting is applied here.