Date: 2018aug14 Update: 2025jan1 OS: Linux Q. Linux: accurately set the time on my Linux box A. Its best to run a time service all the time. But if you want to correct the time right away or its off by a lot you can do:

ntpdate <ntp-server>

For example:

ntpdate time.google.com

You can see a list of more NTP servers here: https://www.ntppool.org/en/ The ntpdate command is in package ntpdate on most distros. You might be able to see some other servers with this:

grep Fallback /etc/systemd/timesyncd.conf