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America/Edmonton

America/Edmonton is the IANA time zone for Mountain – AB, BC(E), NT(E), SK(W) in Canada.

UTC−06:00

Tue, Sep 29 UTC−6 MDT

Offsets and daylight saving time

Standard offset
UTC−06:00
Rule
No daylight saving time: UTC−6 all year.

No clock changes are scheduled in the next three years.

Names

Generic name
Mountain Time
Standard / daylight
Mountain Standard Time / Mountain Daylight Time
Aliases
America/Yellowknife and Canada/Mountain (old ids that resolve to America/Edmonton)

Use it in code

// JavaScript
new Intl.DateTimeFormat('en-US', { timeZone: 'America/Edmonton' })

# Python
from zoneinfo import ZoneInfo
ZoneInfo('America/Edmonton')

-- PostgreSQL
SELECT now() AT TIME ZONE 'America/Edmonton';

Cities in America/Edmonton

Also in this zone: Lethbridge, Red Deer, Yellowknife.

Offset history since 1970

  • 1970–1971: UTC−7
  • 1972–2026: UTC−7 and UTC−6 each year

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