As 10m is still wide open I shall leave 10m WSPR running overnight to find out when the opening to the USA/Canada ends. If it follows the pattern of previous evenings it will draw to a close soon but this is 10m, a band full of surprises.
It will be interesting to see if any Europeans are copied during the night.
I shall check the PC clock sync before I go to bed.
UPDATE 2144z: KC1AWS is still spotting my 2W on 10m WSPR.