Oh, I see many a good post ! !! !

What comes to Assault tags, Sagheera, and Limbus, I believe they are already looking into those.
This thread was/is mainly aimed at the older Missions and Quests, which I now see they have asked for more detailed info on.

As mentioned a few times, Treasures of Aht Urhgan particularly has that wait behind many corners, but it's not the only one, obviously. I see many have given good examples already, and I can't check right now what the names of them all are, but as a more general addition, many if not every of the Wings of the Goddess battle-fields require you to wait until the next day (just game-time thank Altana) if you were to be defeated.
Not really a big of an issue, but rather unnecessary, I think, and it can be frustrating if it must be done several times as the hours will rack up.
Sure, there is the option to not be defeated, but stuff happen!

I guess I should take a look into them Missions and Quests a bit to Refresh my Memory Receptacles to perhaps create a solid list of them all.

Also, there are a few mentions of Chains of Promathia rings.
That (and a friend currently being on this wait) reminds me of the fact that were certain conditions to be met, one has to wait a grand-total of 27 days (earth-time) to obtain a new ring.

I can't even begin to fathom a reason for that (other than the fact that it is 666 Vana'diel days... give or take).