How can I get the operating system Time Zone in Java?

Question

TimeZone.getDefault () returns the system time zone before it was changed.

Example 1:

System.out.println(TimeZone.getDefault());

Result:

Europe/Kaliningrad

This is the system time zone.

Example 2:

TimeZone.setDefault(TimeZone.getTimeZone("Asia/Kolkata"));
System.out.println(TimeZone.getDefault());

Result:

Asia/Kolkata

This is not the system time zone, the system time zone is still in Europe / Kaliningrad.

So how can I get the system timezone even after changing the default DateTimeZone.

+3

Evgenia June 14. 17 at 11:43

2 answers

Evgeniy Dorofeev · Answer 1 · 2017-06-14T11:52:03+0000

You can check the system property user.timezone:

   System.getProperty("user.timezone")

Bishwash · Answer 2 · 2017-06-14T11:47:06+0000

Store TimeZone.getDefault () value in variable before following codes

TimeZone.setDefault(TimeZone.getTimeZone("Asia/Kolkata"));
System.out.println(TimeZone.getDefault());

and use this variable later.