Changing timezone in Linux

 -- to the current setting

# timedatectl

output:

 Local time: Tue 2019-12-03 13:55:09 EST

                  Universal time: Tue 2019-12-03 18:55:09 UTC

                        RTC time: Tue 2019-12-03 18:02:16

                       Time zone: America/New_York (EST, -0500)

       System clock synchronized: no

systemd-timesyncd.service active: yes

                 RTC in local TZ: no

-- to see the list of time zone

# timedatectl list-timezones

output:

...
America/Montserrat
America/Nassau
America/New_York
America/Nipigon
America/Nome
America/Noronha
...

-- To change Timezone

# sudo timedatectl set-timezone America/New_York