cronjob not working

I have a strange problem. I have a cron set up to check a database for a given date that is entered. If today's date matches the db recond, it supposed to change a value in a db table.

now, for some reason if the cron is set to go off every minute, it works like a charm. If it's set to a certain time, it doesn't fire at all. (MYDO开发者_开发百科MAIN is set to the proper domain. )

works with: * * * * * php -q /var/www/vhosts/MYDOMAIN.com/httpdocs/admin/scripts/includes/check_date.php

doesn't work with: 40 16 * * * php -q /var/www/vhosts/MYDOMAIN.com/httpdocs/admin/scripts/includes/check_date.php

or any variation of that time

any idea why it wont fire on anything else then every minute?

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Check that your system time matches the timezone you are expect it to fire in by running

date

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Did you try 59 23 * * * ? try the last minute of the day. Maybe the script only works late in the day ...