The events happen every 24 hours but if you have your game on pause you won't get another one until your game has been played for 24 hours island time. You can put your game on the slowest setting over night.

If you have been time traveling however you will not recieve events as squawky stated -
Quote:
This can mess up the game's internal timing - I think not getting events is one of the problems that changing the system clock causes.


I hth
fltmarch
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He who lives in a glass house should get dressed in the basement.