[Typo3] date/time variables

[tapio]

> n The month as a number without a leading zero (1-12) 

i tried for mininews %n instead %m
plugin.tx_mininews_pi1.dateTimeFormat = %a %d.%m.%Y klo %H:%M
plugin.tx_mininews_pi1.dateTimeFormat = %a %d.%n.%Y klo %H:%M

BUT the result for the month was EMPTY - Typo3 didn't render this format !