Idioms: Call it a day
b'
call it a day
informal\\xa0
C2 Level
to stop what you are doing because you do not want to do any more or think you have done enough:
I'm getting a little tired now - let's call it a day.
After 14 years living and working in this country, she thinks it's time to call it a day.
Source:
https://dictionary.cambridge.org/dictionary/english/call-it-a-day