How difficult does the time limit make the game?

[ZOBLIVION 13]

I've been thinking about buying it, but the thought of playing under a constant time limit seems really harsh. I'd constantly be wondering how much time I have left, and couldn't get myself to bother with the side quests.

So I wanna hear if the time limit is actually as bad as I think it is. How easy is it to run out of time?

[Sora96 17,256]

Just complete the main quests. You won't have to worry about it.