Timing isn't...everything, right?

Ok, so I need to come up with a wedding timeline. Nothing too crazy, just a general idea of when the major events are going to take place, you know, ceremony, dinner, dancing, our exit.



Easy enough. Unless you're me, and you can't make a decision to save your life.

My problems with deciding on a wedding timeline include:

A) I don't know how long anything takes. Ceremony lasts 20 minutes? 30 minutes? An hour?
Group photos take 1 hour, right? How long does it take to eat dinner? In our house, 10 minutes, tops - but I'm assuming at the wedding we won't be munching down while watching Wheel of Fortune.

B) I don't know when the sun sets on October 30th. I checked the weather network and they tell me 6:50pm. Is this when it starts setting? When it's dark? I don't know. I need it to be light outside after the ceremony so that I can get some pictures of the wedding entourage.

C) I want to limit the amount of time the bar is open. My FH and I are not rolling in dough, so, limiting the amount of time the bar is open should limit the amount of drinks his friends pound back (you have no idea the amount of alcohol these men can consume).

D) I want to have energy after the day's events...to...you know...

Does everyone have this much trouble creating a wedding timeline? Or is my Type A personality simply taking over?