[ipsi]

Well, 10, 11, or 12 hour difference, depending on time of year. Having been on the other side of that (in NZ, dealing with UK people, so 11-13 hour difference), 8PM isn't really tolerable - that's two-three hours past normal finishing time, so you either nip out for dinner before the meeting, or you're eating super-late. Plus missing bedtime for kids, possibly having a longer commute home (public transport frequency falls off a cliff after peak hours), although maybe a much shorter commute if you drive.

It worked out for me because I worked 1PM to 11PM or so (my bosses weren't thrilled about it, but not a lot they could do), but I'd have been very unhappy if I was working a normal 8 - 5 or 9 - 6 day.

These days I live in Europe and won't work outside my standard hours, with very rare exceptions, backed up by some fairly strong laws (Germany, so not as strong as France, I think) and some interesting wording choices in my contract.