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-rw-r--r--doc/coreutils.texi14
1 files changed, 8 insertions, 6 deletions
diff --git a/doc/coreutils.texi b/doc/coreutils.texi
index 92331945b..424a431eb 100644
--- a/doc/coreutils.texi
+++ b/doc/coreutils.texi
@@ -14188,11 +14188,9 @@ is available, it is ignored.
If given an argument that does not start with @samp{+}, @command{date} sets
the system clock to the date and time specified by that argument (as
described below). You must have appropriate privileges to set the
-system clock. The @option{--date} and @option{--set} options may not be
-used with such an argument. The @option{--universal} option may be used
-with such an argument to indicate that the specified date and time are
-relative to Coordinated Universal Time rather than to the local time
-zone.
+system clock. Note for changes to persist across a reboot, the
+hardware clock may need to be updated from the system clock, which
+might not happen automatically on your system.
The argument must consist entirely of digits, which have the following
meaning:
@@ -14214,7 +14212,10 @@ last two digits of year (optional)
second (optional)
@end table
-The @option{--set} option also sets the system clock; see the next section.
+Note, the @option{--date} and @option{--set} options may not be used with an
+argument in the above format. The @option{--universal} option may be used
+with such an argument to indicate that the specified date and time are
+relative to Coordinated Universal Time rather than to the local time zone.
@node Options for date
@@ -14355,6 +14356,7 @@ This is equivalent to the format @samp{%Y-%m-%d %H:%M:%S.%N%:z}.
@opindex -s
@opindex --set
Set the date and time to @var{datestr}. See @option{-d} above.
+See also @ref{Setting the time}.
@item -u
@itemx --utc