$ curl cheat.sh/
 cheat:timedatectl 
# Set timezone
timedatectl set-timezone Europe/Paris

 tldr:timedatectl 
# timedatectl
# Control the system time and date.
# More information: <https://manned.org/timedatectl>.

# Check the current system clock time:
timedatectl

# Set the local time of the system clock directly:
timedatectl set-time "yyyy-MM-dd hh:mm:ss"

# List available timezones:
timedatectl list-timezones

# Set the system timezone:
timedatectl set-timezone timezone

# Enable Network Time Protocol (NTP) synchronization:
timedatectl set-ntp on

# Change the hardware clock time standard to localtime:
timedatectl set-local-rtc 1

$
Follow @igor_chubin cheat.sh