$ curl cheat.sh/

# ntpdate
# Synchronize and set the date and time via NTP.
# More information: <http://support.ntp.org/documentation>.

# Synchronize and set date and time:
sudo ntpdate host

# Query the host without setting the time:
ntpdate -q host

# Use an unprivileged port in case a firewall is blocking privileged ports:
sudo ntpdate -u host

# Force time to be stepped using `settimeofday` instead of `slewed`:
sudo ntpdate -b host

$

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