wind up

Hi,
I’d like to know a common expression for such situations:
-Everybody is tired/ I’m afraid we have too little time left. It’s time to stop our work.

Is It’s time we wound up good enough? Any more besides Let’s call it a day?

Thanks in advance.

Shall we call it quits for today?

Thank you, Tdol.
I have to ask my first question again, sorry.
Is It’s time we wound up good enough? Do you ever say so?

Yes that would be perfectly fine, and is regularly used at the end of the AGM of the Ancient Order of Watchmakers, Horologers, and Sundial makers. :-)

Thank you very much, Mordant.