# timedatectl set-timezone “Asia/Kolkata”
# timedatectl list-timezones
# timedatectl OR # timedatectl | grep Time
# timedatectl status
# timedatectl list-timezones | egrep -o “Asia/B.*” # timedatectl list-timezones | egrep -o “Europe/L.*” # timedatectl list-timezones | egrep -o “America/N.*”