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I use Cron to update an hourly report. I give the following time value:

0 * * * *

But the report is always 4 Minutes too early

enter image description here

Checking the System time is correct and in sync with NTP.

Any ideas?

Gill-Bates
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    Great that you solved it, but please don't add `solved` to your question. Post an answer and accept it instead. This will mark the question as "solved" in the system. It is perfectly fine to answer your own question. – Gerald Schneider Jan 30 '20 at 09:53

1 Answers1

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Issue solved. syslog is correct:

Jan 30 10:00:01 CRON[25825]: (root) CMD (vnstati -h -o /var/www/..../image.png > /dev/null 2>&1)

The Bug seems to be inside the PNG Generator of vnstati

stat image.png

Modify: 2020-01-30 10:00:01.380296387 +0100
Gill-Bates
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