What time is it in Sakhalin?

Russia spans 11 time zones, so the answer depends on where in it you mean. Sakhalin covers MSK+08 - Sakhalin Island and is 8 hours ahead Moscow, which is the zone most people mean by “the time in Russia”.

Sakhalin does not observe daylight saving, so its offset from UTC never moves. Its relationship to places that do change shifts twice a year instead.