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~-[[DebianWiki/EditorGuide#translation|Translation(s)]]: English - [[es/NTP|Español]] - [[it/NTP|Italiano]] - [[pt_BR/NTP|Português Brasileiro]]-~ ##For Translators - to have a constantly up to date translation header in you page, you can just add a line like the following (with the comment's character at the start of the line removed)
##<<Include(NTP, ,from="^##TAG:TRANSLATION-HEADER-START",to="^##TAG:TRANSLATION-HEADER-END")>>
##TAG:TRANSLATION-HEADER-START
~-[[DebianWiki/EditorGuide#translation|Translation(s)]]: [[NTP|English]] - [[es/NTP|Español]] - [[it/NTP|Italiano]] - [[pt_BR/NTP|Português (Brasil)]] - [[uk/NTP|Українська]]-~
##TAG:TRANSLATION-HEADER-END

Translation(s): English - Español - Italiano - Português (Brasil) - Українська


NTP

Network Time Protocol. This will make your system date match actual date, by synchronizing with network time servers.

{i} systemd-timesyncd acts as a NTP client even when no network is available. This is enough to synchronize a system. NTP deamon is required only when a NTP server is required. See Freedesktop.org's page on timesyncd for more details

Install and Configure

  • Type date to see current date and time. (Use -R to get a standard unambiguous format. Locale specific timezones are ambiguous.)

date -R
  • Install NTP

aptitude install ntp
  • Done.
  • Type ntpq -p to see servers you are syncing with.

  • Type date again to see if the time changed. Your time should be synced in a next minute.

  • Done.

Troubleshooting

  • If you run ntpq -p and you get

No association ID's returned
  • Run

dpkg-reconfigure ntp
  • And then again:

ntpq -p

     remote           refid      st t when poll reach   delay   offset  jitter
==============================================================================
 ntp.pbx.org     xx.xxx.xxx.xxx   2 u    -   64    1   33.763  1799619   1.054
 xray.metadom.co xx.xxx.xxx.xxx   2 u    1   64    1   40.367  1799619   0.001
 hydrogen.cert.u xx.xxx.xxx.xxx   2 u    -   64    1   64.740  1799619   0.001
 mirror          .INIT.          16 u    -   64    0    0.000    0.000   0.001

Public Internet Time Servers

The Debian package will install a default set of time servers which should be good for most typical client installations. However you may customize this for your network location. A good source of NTP pool information is the NTP Pool Project.

See also

Debian-specific information

Upstream specific information

Other information


CategoryNetwork CategorySoftware CategorySystemAdministration ?CatgeoryTime