How many hours and minutes is it from 11.40 to 6.10?

From 11:40am to 6:10pm is 6 hours and 30 minutes.

From 11:40am to 6:10am is 18 hours and 30 minutes.

From 11:40pm to 6:10pm is 18 hours and 30 minutes.

From 11:40pm to 6:10am is 18 hours and 30 minutes.