Hi,
Welcome to the forum.
Please read the first post in any forum entitled how to use this forum.
http://forum.arduino.cc/index.php/topic,148850.0.html then look down to item #7 about how to post your code.
It will be formatted in a scrolling window that makes it easier to read.
Can you please post a copy of your circuit, in CAD or a picture of a hand drawn circuit in jpg, png?
Include how you have your button wired and your servo.
We cannot do anything for you without the above.
Also a link to the data/spec of your servo.
What is it supposed to do for 3 minutes?
Thanks.. Tom.. 