Can you honestly blame Scotland for going for it? at least they will not be ruled by a shower of Self Interest, self Opinionated robbing Parasites that sit in the H.P. A lot of people out there think there is no life beyond Watford.
They reckon between 6am and 7am. I think that's a little optimistic and would expect that all the results will be in by around lunchtime. Of course, if there happens to be a landslide in Glasgow, Edinburgh and Aberdeen, either way, the result will be known by around 4am.
If all areas count through the night then the result, unless it is very close, should be known around 9.00 a.m., which is roughly 3.00 a.m. Canadian time.