How long are you at services on yom kippur?

Question

How long are you at services on yom kippur?

Answer 1

2 1/2 hours.

Answer 2

almost the entire day its really long especially when youre fasting and can't use electronics and can only read and also when youre in a real bad synagogue last year i was reading a book at at times it had really gross parts but i didn't really lose my appetite from it i was hoping it would  

Answer 3

Kol Nidrei (the evening service that begins Yom Kippur) is 2-3 hours. Then morning services can easily go 4-5 hours, and afternoon services are another 2-3 hours. That's in conservative Judaism; reform would be less, orthodox might be more.