In this post we’ll see different ways to get current date and time in Java. Options you have are using-
- java.util.Date
- java.util.Calendar
- java.time.LocalDate- To get date.
- java.time.LocalTime- To get time.
- java.time.LocalDateTime- To get both date and time.
- java.time.ZonedDateTime – If you want time-zone information too.
Out of these classes LocalDate, LocalTime, LocalDateTime and ZonedDateTime are classes in Java 8 new Date and Time API.
1. Getting Date and Time using java.util.Date
When you instantiate a Date object it is initialized so that it represents the date and time at which it was allocated.
Date date = new Date(); System.out.println(date);
Output
Thu Oct 10 16:42:21 IST 2019
Using SimpleDateFormat you can format this date.
public class FormatDate {
public static void main(String[] args) {
Date date = new Date();
SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy hh:mm:ss.SSS");
System.out.println(sdf.format(date));
}
}
Output
10/10/2019 04:50:49.197
2. Getting Date and Time using java.util.Calendar
Using getInstance() static method of the Calendar class you can get an instance of Calendar.
public class FormatDate {
public static void main(String[] args) {
Calendar calendar = Calendar.getInstance();
SimpleDateFormat sdf = new SimpleDateFormat("MMM-dd-yyyy hh:mm:ss");
System.out.println(sdf.format(calendar.getTime()));
}
}
3. Using java.time.LocalDate
LocalDate represents a date without time-zone in the ISO-8601 calendar system. Using now() method you can obtain the current date from the system clock in the default time-zone.
For formatting date you can use DateTimeFormatter class which is also added in Java 8.
public class FormatDate {
public static void main(String[] args) {
// get date
LocalDate date = LocalDate.now();
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("MM/dd/yyyy");
System.out.println(date.format(formatter));
}
}
Output
10/10/2019
4. Using java.time.LocalTime
LocalTime represents a time without a time-zone in the ISO-8601 calendar system, such as 08:10:30.
Using now() method you can obtain the current time from the system clock in the default time-zone.
public class FormatDate {
public static void main(String[] args) {
// get time
LocalTime date = LocalTime.now();
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("hh:mm:ss a");
System.out.println(date.format(formatter));
}
}
Output
05:11:31 PM
5. Using java.time.LocalDateTime
LocalDateTime represents a date-time without a time-zone in the ISO-8601 calendar system, such as 2007-12-03T10:15:30.
Using now() method you can obtain the current date-time from the system clock in the default time-zone.
public class FormatDate {
public static void main(String[] args) {
// get datetime
LocalDateTime dateTime = LocalDateTime.now();
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss.SSS");
System.out.println(dateTime.format(formatter));
}
}
Output
2019-10-10T17:14:41.098
6. Using java.time.ZonedDateTime
ZonedDateTime represents date-time with a time-zone in the ISO-8601 calendar system, such as 2007-12-03T10:15:30+01:00 Europe/Paris. If you want zone offset and time-zone then you can use ZonedDateTime instance.
public class FormatDate {
public static void main(String[] args) {
// get datetime
ZonedDateTime dateTime = ZonedDateTime.now();
//z=time-zone name, V=time-zone ID
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss.SSS z VV");
System.out.println(dateTime.format(formatter));
}
}
Output
2019-10-10T17:22:31.958 IST Asia/Calcutta
Related Posts
- Create a Date Object With Values in Java
- Java Program to Convert Date to LocalDate, LocalDateTime
- Java Program to Convert Between Time Zones
- Convert Date to String in Java
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- How to List All The Files in a Directory in Java
- How to Convert String to Byte Array in Java
- How to Convert float to int in Java
That’s all for the topic Getting Current Date and Time in Java. If something is missing or you have something to share about the topic please write a comment.
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