I am wondering if the other answer helped you. It is strange that I have the same trouble with login. My clock is fine, year, time zone etc. At least on my desktop. But the time I see on this forum is 3 hours later.
After a long time not being in SL and after having installed Windows 10 I cannot loging anymore. Get the message that my timesettings on my pc are not right. But they are. Can someone advise me please?