'\" t
.TH "SYSTEMD\-TIMEDATED\&.SERVICE" "8" "" "systemd 241" "systemd-timedated.service"
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.SH "NAME"
systemd-timedated.service, systemd-timedated \- Time and date bus mechanism
.SH "SYNOPSIS"
.PP
systemd\-timedated\&.service
.PP
/lib/systemd/systemd\-timedated
.SH "DESCRIPTION"
.PP
systemd\-timedated
is a system service that may be used as a mechanism to change the system clock and timezone, as well as to enable/disable NTP time synchronization\&.
systemd\-timedated
is automatically activated on request and terminates itself when it is unused\&.
.PP
The tool
\fBtimedatectl\fR(1)
is a command line client to this service\&.
.PP
See the
\m[blue]\fBdeveloper documentation\fR\m[]\&\s-2\u[1]\d\s+2
for information about the APIs
systemd\-timedated
provides\&.
.SH "ENVIRONMENT"
.PP
\fI$SYSTEMD_TIMEDATED_NTP_SERVICES\fR
.RS 4
Colon\-separated list of unit names of NTP client services\&. If not set, then
\fBsystemd-timesyncd.service\fR(8)
is used\&. See the entries of NTP related commands of
\fBtimedatectl\fR(1)
for details about this\&.
.sp
Example:
.sp
.if n \{\
.RS 4
.\}
.nf
SYSTEMD_TIMEDATED_NTP_SERVICES=ntpd\&.service:chronyd\&.service:systemd\-timesyncd\&.service
.fi
.if n \{\
.RE
.\}
.sp
.RE
.SH "SEE ALSO"
.PP
\fBsystemd\fR(1),
\fBtimedatectl\fR(1),
\fBlocaltime\fR(5),
\fBhwclock\fR(8),
\fBsystemd-timesyncd\fR(8)
.SH "NOTES"
.IP " 1." 4
developer documentation
.RS 4
\%https://www.freedesktop.org/wiki/Software/systemd/timedated
.RE