The install is the short part
Most tint jobs are finished within a few hours. You can wait at the shop or drop the car and come back. The bigger number to plan around is the curing time after.
Give it 2 to 3 days
After tint goes on, wait 2 to 3 days before rolling the windows down. The film needs that time to set fully against the glass, and rolling down early can lift an edge. A little haze or a few water pockets in the first days are normal and clear as it cures.
The heat helps
One upside of the desert: the heat speeds curing along. Leave the windows up the first couple of days, park in the sun, and the tint sets clean.
