Anytime

Sunday afternoon. In the heat of summer with a breeze coming from the window.

As and when needed.

Second day of the period

Me: One PM..

when you're tired

in the middle of Saturday afternoon with a friend.

in the afternoon if you didn't get much sleep last night

it's 1am and I need to go to bed

Early afternoon

When you're tired.

During work hours.

when you can't control your farts because of sleeplessness