How to check time in different timezone

Check the time in a different time zone to determine when the meeting will start whenever you are.

Display system timezone.

$ cat /etc/timezone

Etc/UTC

Display current date and time using system timezone.

$ date

Sat Jul 16 07:41:32 PM UTC 2022

Display current date and time in Warsaw.

$ TZ=Europe/Warsaw date

Sat Jul 16 09:41:32 PM CEST 2022

Convert next Thursday at 15:00 in Warsaw to UTC.

$ date '--date=TZ="Europe/Warsaw" next Thursday 15:00'

Thu Jul 21 01:00:00 PM UTC 2022

Display current date and time in Athens.

$ TZ=Europe/Athens date

Sat Jul 16 10:41:32 PM EEST 2022

Convert tomorrow at 14:00 in Athens to Warsaw time.

$ TZ=Europe/Warsaw date '--date=TZ="Europe/Athens" tomorrow 14:00'

Sun Jul 17 01:00:00 PM CEST 2022

Display current date and time in New York.

$ TZ=US/Eastern date

Sat Jul 16 03:41:32 PM EDT 2022

Convert next Friday at 01:00 PM in New York to Warsaw time.

$ TZ=Europe/Warsaw date '--date=TZ="US/Eastern" next friday 01:00 pm'

Fri Jul 22 07:00:00 PM CEST 2022

So simple, yet so beautiful.