Scifi_Taoist

I have another question along these lines that I have half worried about while playing. Is there an overall game clock that could be effected by taking too much time to complete all the side quests and exploring everywhere? I ask because I do remember that there was a game clock in A3 where if you didn't get to certain areas in certain times then things could be drastically different. Basically, if I took my time between the major quests to complete side quests and muck around, I'm not going to mess up something else bigger down the line am I?