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Lets say

0   0,12    *   *   * command

is what you write a cron job, which runs twice a day on 00hour and 12th hour.

How to write to do cron job twice a day but lets say on 2pm and 2am?

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migrated from stackoverflow.com Jan 20 '12 at 5:11

This question came from our site for professional and enthusiast programmers.

up vote 3 down vote accepted

cron runs on a 24 hour clock starting from 0 as midnight and 23 as 11 pm. As such you'd simply have to replace 0,12 with 2,14

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try this cron job calculator http://www.csgnetwork.com/crongen.html

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