If you're like me, you love timed abilities. Nice lil buff that help you along. You probably also like increased EXP or Rare Drops from whatever quest you're grinding. But the right effect can be hard to get if it's not the common effect of the day. Turns out the one you most commonly get when creating a Time Ability is tied to the day of the month. It's the 25th today, so it's increased EXP. it'll be EXP next month on the 25th too. It's the same every month on the same numerical day. I'm posting an image of the days and associated effects here. It's from a JP site, so the effects and worded somewhat poorly due to translation, but you should understand it and the effects/days are the same here. Hope this helps you all!