Hi !
First of all, thank you so much for your plugin, and especially for sharing it 

Here is my issue :
  I use module recurring downtime 3.2 and Nagios 3.4.4, cron is scheduled for refreshing every minute.
  When I set up a recurring downtime on sundays, the downtime schedules itself for the next monday and tuesday as well ... But the recurring creation date (not the date/time of the downtime itself) is like 3/4 hours later.
  I saw on the web this should have been something you corrected in version 2.2 ... Since I'm on version 3.2, is it maybe something with the Nagios version ?
  Are you aware of this problem ?
Regards
Nico