MSK — Moscow Standard Time
MSK is Moscow Standard Time, +03:00, used in Europe. In code, use Europe/Moscow rather than the abbreviation.
Use the IANA name, not the abbreviation
Python
from datetime import datetime
from zoneinfo import ZoneInfo
# right: an IANA zone carries the full history of rule changes
now = datetime.now(ZoneInfo("Europe/Moscow"))
print(now.isoformat(), now.tzname())
# wrong: an abbreviation is not resolvable, and a hard-coded offset
# silently rots the next time the rules change
# now = datetime.now(timezone(timedelta(hours=...))) # don'tMSK questions
What does MSK stand for?
MSK is Moscow Standard Time, +03:00, used in Europe. The IANA zone to use in code is Europe/Moscow.
What time is it in MSK right now?
Moscow Standard Time: 03:26 on Thursday (MSK).
Which IANA timezone should I use instead of MSK?
Europe/Moscow for Moscow Standard Time. Date libraries cannot resolve bare abbreviations, and an abbreviation carries no daylight-saving history, so a stored offset silently rots when a government changes the rules.