diff options
Diffstat (limited to 'hwclock/hwclock.8')
| -rw-r--r-- | hwclock/hwclock.8 | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/hwclock/hwclock.8 b/hwclock/hwclock.8 index 31eda21f3..7f0c53d94 100644 --- a/hwclock/hwclock.8 +++ b/hwclock/hwclock.8 @@ -54,6 +54,25 @@ This is a good option to use in one of the system startup scripts. .B \-w, \-\-systohc Set the Hardware Clock to the current System Time. .TP +.B \-\-systz +Reset the System Time based on the current timezone. + +Also set the kernel's timezone value to the local timezone +as indicated by the TZ environment variable and/or +.IR /usr/share/zoneinfo , +as +.BR tzset (3) +would interpret them. +The obsolete tz_dsttime field of the kernel's timezone value is set +to DST_NONE. (For details on what this field used to mean, see +.BR settimeofday (2).) + +This is an alternate option to +.B \-\-hctosys +that does not read the hardware clock, and may be used in system startup +scripts for recent 2.6 kernels where you know the System Time contains +the Hardware Clock time. +.TP .B \-\-adjust Add or subtract time from the Hardware Clock to account for systematic drift since the last time the clock was set or adjusted. See discussion |