On Friday, September 08, 2017 08:24:09 AM Greg Wooledge wrote: > On Thu, Sep 07, 2017 at 09:40:21PM +0200, Jochen Spieker wrote: > > Pol Hallen: > > > 00 01 * * * root /usr/bin/rsnapshot alpha > > > 30 3 * * * root /usr/bin/rsnapshot beta > > > > alpha will be run daily at 01:00 am and beta daily at 03:30 am. Is this > > what you want? > > Just be careful with local time zone daylight saving time changes. > Once a year, in my time zone, those two times will occur 90 minutes > apart, instead of 150 minutes apart. (And also once a year, they > will occur 210 minutes apart.)
That's one reason I like to use GMT instead of local time for things "within" the computer--then I can decide how I want to deal with things like time changes due to daylight savings time (or moving / traveling) between different time zones.