With accent marks:
Де́лу вре́мя, поте́хе час.
Time for business, an hour for fun.
This is the expression of the Russian Tsar Alexei Mikhailovich (1629 - 1676) written by him in a book dedicated to falconry.
Meaning: most of the time shoud be dedicated to business (work) and duties, and less time - to entertainment.
It is usually said as a reminder to a person who, having fun, forgets about his duties.
Other Russian proverbs
Another's soul is darkness.
When I eat I am deaf and mute.
A fisherman sees a fisherman from afar.
A bird is visible by its flight.
The apple never falls far from the tree.
Make a fool pray to God - he will break his forehead.
If you are chasing two hares at once, you won’t catch a single one.
Everything has its time.