Can't remember exactly,
ATPL with an airline 900 hrs ish pa
dependent wether long haul, short haul, and airline you work for.
If working for a low cost, short haul expect to work near the maximum with long days up to 4 sectors per day for example uk to spain return then uk to ireland return all in one day.
Long haul could be from a five hour to whatever bearing in mind we use a third pilot for a break above eight hours.
There again you might get lucky and work for a large airline but based at a regional airport and only work 500 hrs pa.
You might even work 400 hrs one year, 800 the next 900, the next, you just don't know. You are not allowed to exceed the maximum. Like said earlier, money for old rope (but quality old rope). 900 hrs pa equates to 24 working weeks per year based on a 37.5 hr working week, not bad.
It is actually more complicated than this and too complex to explain in this thread.
ILS 119.5