update ntpdate-snap is now use sntp command rather than ntpdate
ntpdate is a depracated package in upstream
Please see the note from ntpdate upstream - https://support.ntp.org/Dev/DeprecatingNtpdate
This is a sntp in a snap This snap provides a command line tool for sntp and a daemon to sync device time setting every 30 sec.
Manually interface connection is required in order to make the snap work properly connect interface with following command
sudo snap connect ntpdate-snap:time-control
Default connects to time.windows.com for time sync, specify alternative ntp server with following command
snap set ntpdate-snap url=time1.google.com
Manually perform time sync with following example
sudo ntpdate-snap time1.google.com