Common commands for Ubuntu server
To check the time:
date
To list the available time zones:
timedatectl list-timezones
To set the time zone with timedatectl set-timezone:
timedatectl set-timezone America/New_York
You can query the status of timesyncd by running timedatectl with no arguments. You don’t need to use sudo in this case:
timedatectl
If time sync isn’t enabled, turn it on with timedatectl:
sudo timedatectl set-ntp on
You may run: dpkg-reconfigure tzdata if you wish to change the timezone
To check if web service is running:
sudo systemctl status apache2.service
If support or docs service stop working, you can try restarting:
sudo systemctl restart apache2
or
sudo service apache2 restart