Linux: Ubuntu – Setting time zone with timedatectl

List available timezone locations

Type: timedatectl list-timezones

Africa/Abidjan
Africa/Accra
Africa/Addis_Ababa
Africa/Algiers
Africa/Asmara
…
…
…
America/New_York

set timezone

Type:  timedatectl set-timezone America/New_York

display settings

Tyep: timedatectl
Local time: Fri 2017-06-21 16:10:07 EDT
Universal time: Fri 2017-06-21 07:10:07 UTC
RTC time: Fri 2017-07-21 07:10:06
Time zone: America/New_York (EDT, -0400)
Network time on: yes
NTP synchronized: yes
RTC in local TZ: no