I don't really pay much attention to the time to tell you the truth, but I can check tonight and post back later. I play on Noble difficulty (although I am going to move up one difficultly level the next time I play). In the game I am currently playing, it is 1750AD and I have never dropped my Science below 100% the entire game.
General order of operations is (as Gandhi) :
build first city
explore with warrior
build worker
chop forests with worker
build warrior, warrior, worker, settler, worker (using chops)
switch to stonehenge in first city and build it (using chops)
settle second city
second worker from first city comes over and chops second cities woods.
build worker, settler
switch to oracle in second city and build it (using chops)
build third city
build worker, settler
in first city, after buuilding stonehenge, i usually switch to a couple of warriors to send out to fortify existing cities.
etc.etc.etc. The worker I build in each city, immediately chops all the wood near the city until its all gone so that each city gets huge boosts at the beginning.
Something like that, I don't have an exact method every time, but I use a similar strategy.