Mission Progress: Wait until the next day (earth-time).

[Annahya]

For what it is worth, I will give my opinion as well:

First Priority - All "Story" missions (Nation, CoP, ToAU, Zilart, etc.), across the board. While some of this content does reward the player with gear, it is not a "spammable" scenario as they are generally only completed once per character. Reward or not, someone shouldn't be arbitrarily held up doing immersive content. If something needs a delay for sensible, story based reasons, make it an in-game day - so the longest anyone has to wait for something to progress is just under an hour.

Second Priority - I would like to see every single "conquest tally" wait time (save conquest itself, obviously) reduced to Japanese midnight instead. I get, like many others here, that some content does require a bottleneck to fight congestion and artificially control growth; but if the only time someone can find the assistance to do something is Monday night, should they really have to wait until Sunday morning to reap the benefit? Perhaps someone wiser than I can point to a time that this is necessary, but I just don't see it.

Third Priority - Assault Tags changed from a twenty-four hour cooldown per tag, to a "all refresh at Japanese midnight" system. This way, content is similarly paced, but players have a bit more control over when in the day they are able to experience it.

Last Priority - I would enjoy Limbus content being daily like Dynamis, though I concede that with the upcoming Limbus update this might not be appropriate. I will qualify this to state "unless something about the new Limbus content is a major departure from the old Limbus content, or unless something is added to it that requires a bottleneck, please make this a Japanese midnight timer like the new Dynamis."

There are my two-cents.