cronjobs execute at the wrong time

[gtbX]

I've got a fileserver set up for a small LAN, which I am using to host a local portage tree. I've set up a cronjob to update the tree bi-weekly as so:

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# crontab -l
30      13      *       *       wed,sat emerge sync --quiet >> /root/sync.log 2>&1

However, instead of executing at 1:30 pm, it runs anywhere from 12:30-2:00 am (from looking at the file modification times). Ok so its not catastrophic, but it is annoying.

Before you ask, the clock is set to the right time, and the timezone is set correctly:

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# ls -l /etc/localtime
lrwxrwxrwx 1 root root 36 May  6 08:38 /etc/localtime -> /usr/share/zoneinfo/America/New_York

I've tried both vixie-cron and dcron, and both do the same thing.

[stratovarius]

For further diagnosis, try something like:

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00    *      *       *       /usr/bin/date >> /tmp/times.log

and watch /tmp/times.log over a couple of days.

[sotn3m]

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00    *      *       *       /usr/bin/date >> /tmp/times.log

Maybe I am wrong and maybe I have just fcron instead of those 2 mentioned, but I would have one more star ("*")

I have 5 fields..:

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        1. Minute [0,59]
        2. Hour [0,23]
        3. Day of the month [1,31]
        4. Month of the year [1,12]
        5. Day of the week ([0,6] with 0=Sunday)

[gtbX]

/me slaps forehead

It would help if i had looked more closely at the time. The clock was exactly 12 hours off, and i forgot that date returns times in 24hour format.