the odd occasion BrE
the odd moment BrE
the odd day BrE

"On an odd day, I might get eight or nine."

There may be odd days, however, when a problem arises.

The date does not determine whether it is an even or an odd day.

I thought we only had twenty odd days left, sir.

There were even the odd days when they got some picking done.

On the odd days, see me after breakfast for anything I may need help with.

I couldn't even manage the children - friends took them for odd days.

Come Masters week at least we have the odd day of sun.

But then, as he'd already acknowledged, it had been an odd day.

I've got odd days and then a six week block.