diff options
| author | sheldonh <sheldonh@FreeBSD.org> | 1999-08-11 13:00:19 +0000 |
|---|---|---|
| committer | sheldonh <sheldonh@FreeBSD.org> | 1999-08-11 13:00:19 +0000 |
| commit | fe79cb6242d8bd8f170c49782ce513fc62256632 (patch) | |
| tree | 15842df368d8750a5cc09e50f68e9f47324a06f4 /usr.sbin/cron | |
| parent | 51e8eceb2db29ce513374f70faf2012ca0509ef7 (diff) | |
| download | FreeBSD-src-fe79cb6242d8bd8f170c49782ce513fc62256632.zip FreeBSD-src-fe79cb6242d8bd8f170c49782ce513fc62256632.tar.gz | |
Christen a BUGS section for an explanation of the impact of Daylight
Savings Time on cron(8). If we ever introduce some work-around code for
handling jobs scheduled for a time that "doesn't happen" due to DST,
the section should be renamed to IMPLEMENTATION NOTES.
PR: 10947
Reported by: Scott Drassinower <scottd@cloud9.net>
Submitted by: Seth Bromberger <seth@freebie.dp.ny.frb.org>
Reviewed by: mpp
Diffstat (limited to 'usr.sbin/cron')
| -rw-r--r-- | usr.sbin/cron/crontab/crontab.5 | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/usr.sbin/cron/crontab/crontab.5 b/usr.sbin/cron/crontab/crontab.5 index e6f939c..8eea248 100644 --- a/usr.sbin/cron/crontab/crontab.5 +++ b/usr.sbin/cron/crontab/crontab.5 @@ -15,7 +15,7 @@ .\" * Paul Vixie <paul@vix.com> uunet!decwrl!vixie!paul .\" */ .\" -.\" $Id: crontab.5,v 1.8 1998/03/23 08:21:36 charnier Exp $ +.\" $Id: crontab.5,v 1.9 1999/07/27 16:39:02 n_hibma Exp $ .\" .Dd January 24, 1994 .Dt CRONTAB 5 @@ -223,3 +223,15 @@ feature can be turned off and no mail will be sent at all (SysV can't do this either). .Sh AUTHORS .An Paul Vixie Aq paul@vix.com +.Sh BUGS +If you're in one of the 70-odd countries that observe Daylight +Savings Time, jobs scheduled during the rollback or advance will be +affected. In general, it's not a good idea to schedule jobs during +this period. +.Pp +For US timezones (except parts of IN, AZ, and HI) the time shift occurs at +2AM local time. For others, the output of the +.Xr zdump 8 +program's verbose +.Fl ( v ) +option can be used to determine the moment of time shift. |
