I seem to remember reading somewhere on the forums that those numbers are in seconds -- so if you subtract the smaller one from the larger, you get the number of seconds until your next event.
Divide that number by 3600 to convert it to hours.
I guess if that's true it doesn't matter what speed you play the game on -- you get the event at the same time.
I usually get one event per day.
-- jen
Wow - that is WAY more events than I am seeing. I'm seeing an event every 2 or 3 real days maybe less. Same in VV1 as well. Something I'm doing wrong maybe?