NST — Newfoundland Standard Time
NST is Newfoundland Standard Time, -03:30, used in North America. In code, use America/St_Johns rather than the abbreviation.
Newfoundland Standard Time · North America
21:45:41
Wednesday, 12 August 2026
- abbreviation denotes
- -03:30
- in force right now
- NDT (UTC-02:30) · DST
- use in code
- America/St_Johns
- next clock change
- 1 Nov 2026 01:00 → NST
UTC-3:30 — the only half-hour offset in North America.
Right now this zone is on NDT, not NST —
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("America/St_Johns"))
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'tNST questions
What does NST stand for?
NST is Newfoundland Standard Time, -03:30, used in North America. The IANA zone to use in code is America/St_Johns.
What time is it in NST right now?
Newfoundland Standard Time: 21:45 on Wednesday (NDT).
Which IANA timezone should I use instead of NST?
America/St_Johns for Newfoundland 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.
Why does my computer show NDT instead of NST?
Because America/St_Johns is currently on NDT (UTC-02:30), its daylight-saving variant. NST (-03:30) applies during the other half of the year. Both names refer to the same place, one hour apart.