How early do u need to be at bus depot for boarding?

30 min is a safe bet

Get there about 30 mins early; you'll have plenty of time

1 hr to 2hrs And That's Only 2 Check Your Bags If You Have Any To Check And So They Can See How Many seats they have filled and if you have to go on a later bus

The earlier your there means a better seat on the bus otherwise if you printed your ticket at home you can show up 15 minutes prior to your departure time.

2 hours