How often do Mini World Events change?

Question

Not all world changes are active since server save, for example Bank Robbery or Noodles is gone.

The world event board change randomly or every hour/ two hours or how does it work?

Answer 1

The world Event board change every SS.

Depends on what kind of world chance have more or less chance to appear.

For example, Fury gate will appear 3/4 times/week whilee devovorga event for kill this minibosses with tentacles will apear 1 time each 3 months aprox.

Answer 2

As Gleemody mentionted, world events change everyday on SS.

Also

Keep in mind that sometimes servers are restarted also during the day. So there might be situations when even 2 or 3 server saves will take place in 1 day!