The clocks went back an hour last night at 2am - British Summer Time ended. My backup job is scheduled to run daily at 01:12. It ran twice. This is on a Debian Lenny server.
man cron says:
if the time has moved backwards by less than 3 hours, those jobs that fall into the repeated time will not be re-run
The crontab entry is:
12 1 * * * /home/lawnjam/bin/backup.sh
What's going on?