It's possible schedule a downtime for yesterday? for example, downtime start: yesterday at 1:00am and downtime end: yesterday 3:00am
This could be very useful if you forgot schedule downtime for a system maintenance.
I tried it, but Nagios only add the action to actual log (nagios.log) but not to yesterday log. Because of this, then report doesn't find the timestamp at yesterday log and don't calculate it.