A full 2 minutes for every layer of gel.
That usually equates to 8 minutes per hand per set if using white brush on gel or white sculpting gel. Less if not.
The worst thing you can do is under cure the gel so do not skimp on this step or it could lead to over exposure.
The 2 minute cure per layer is exactly similar to other professional strong gels. It is still perfectly possible to do a full set in industry standard time of 1hr 15 per set and one hour for a rebalance.
Some professionals like to work with 2 UV Lamps. I am one of them. I find it more efficient, so if gel is your first love and your first service in the salon, you may wish to invest in another lamp.