Quest.

I was wondering if its possible to make a quest to be only on a specific day/days... to be every monday or 3-4 days per week... I tried editing in tasks.data, i was looking at other quests to compare them, and i couldn`t figure it out... if anyone has any ideas please help. Thank you :)

Look at the tasks for Dragon Temple Raid, as it is only available on a certain and times.