There are no typical swing shift hours, as each business will set start and end times according to its own needs. That said, a 12-hour swing shift might work like this:
Mon – Tues – Wed: Work 12 hours during the day
Thurs – Fri: Off work
Sat – Sun – Mon – Tues: Work 12 hours during the night
Tues – Wed – Thurs: Off work
Fri – Sat – Sun: Work 12 hours during the day
And so on