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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's page on timesyncd for more details

Install and Configure

date -R

aptitude install ntp


No association ID's returned

dpkg-reconfigure ntp

ntpq -p

     remote           refid      st t when poll reach   delay   offset  jitter
==============================================================================   2 u    -   64    1   33.763  1799619   1.054   2 u    1   64    1   40.367  1799619   0.001
 hydrogen.cert.u   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