EEST: Eastern European Summer Time
EEST is Eastern European Summer Time, +03:00, used in Europe. In code, use Europe/Athens rather than the abbreviation.
Eastern European Summer Time · Europe
03:35:47
Sunday, 15 November 2026
- abbreviation denotes
- +03:00
- in force right now
- EET (UTC+02:00)
- use in code
- Europe/Athens
- next clock change
- 28 Mar 2027 04:00 → EEST
Right now this zone is on EET, not EEST. They are the same place at different times of year.
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/Athens"))
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'tEEST questions
What does EEST stand for?
EEST is Eastern European Summer Time, +03:00, used in Europe. The IANA zone to use in code is Europe/Athens.
What time is it in EEST right now?
Eastern European Summer Time: 03:35 on Sunday (EET).
Which IANA timezone should I use instead of EEST?
Europe/Athens for Eastern European Summer 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.
Why does my computer show EET instead of EEST?
Because Europe/Athens is currently on EET (UTC+02:00), its daylight-saving variant. EEST (+03:00) applies during the other half of the year. Both names refer to the same place, one hour apart.