Synchronize date and time with a server over ssh

date --set="$(ssh user@server date)"

Shorter, easier to remember version of cmd#7636 NTP is better, but there are situations where it can't be used. In those cases, you can do this to sync the local time to a server.

Sample Output

Password:
Tue Aug 30 16:00:02 EDT 2011

By: splante

2011-08-30 20:03:06

date ssh ,NTP ,Date

4 Alternatives + Submit Alt

Synchronize date and time with a server over ssh

Set Remote Server Date using Local Server Time (push) Show Sample Output
This is sample output - yours may be different.
```
Thu Mar 26 20:24:35 UTC 2015
```
5

ssh user@server sudo date -s @`( date -u +"%s" )`

daryltucker · 2015-03-26 20:25:23 7
Synchronize date and time with a server over ssh

If you are stuck behind a firewall and want to synchronize time with another server but you do not want to port forward NTP (which uses UDP) then this command is handy. It gets the time from a server and sets the local time. It is not that accurate but I can live with a second or so drift. Show Sample Output
This is sample output - yours may be different.
```
2011011110:28:12
```
2

date +%Y%m%d%T -s "`ssh user@server 'date "+%Y%m%d %T"'`"

unixmonkey16473 · 2011-01-11 10:33:32 2
Synchronize date and time with a server over ssh

using -u is better for standardizing date output and timezones, for servers in different timezones.
This is sample output - yours may be different.
2

date --set="$(ssh user@server 'date -u')"

unixmonkey49259 · 2013-06-03 06:43:49 2
Synchronize date and time with a server over ssh

Neat idea! This variation works on FreeBSD.
This is sample output - yours may be different.
0

date `ssh user@server date "+%y%m%d%H%M.%S"`

wu · 2011-08-30 22:32:14 2

What Others Think

Is there a nice way to do that the other way round? So set the date on a machine to you SSH to, not from a machine you SSH to.

bugmenot · 613 weeks and 6 days ago

Sure. From the time source server do: ssh user@host "date --set \"$(date)\""

TommyBotten · 613 weeks and 2 days ago

@TommyBotten Than You Tommy. This was useful

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Hippieshome55 · 23 weeks and 5 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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