EST to Calgary Time Converter
MDT is 1 hour behind EST. 9:00 AM EST = 8:00 AM MDT.
MDT is 1 hour behind EST at the moment. To convert EST to Calgary Time, subtract 1 hour from the EST time: 9:00 AM EST = 8:00 AM MDT.
EST (Eastern Time) is used in New York, Washington DC, Florida, Georgia, Ohio, Michigan, Ontario, Quebec, Panama and Jamaica (all year). Calgary Time (Calgary time) is used in Calgary, Canada.
EST to Calgary Time time conversion table
EST to Calgary Time on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| EST | Calgary Time | Day |
|---|---|---|
| 12:00 AM EST | 11:00 PM MDT | previous day |
| 1:00 AM EST | 12:00 AM MDT | night |
| 2:00 AM EST | 1:00 AM MDT | night |
| 3:00 AM EST | 2:00 AM MDT | night |
| 4:00 AM EST | 3:00 AM MDT | night |
| 5:00 AM EST | 4:00 AM MDT | night |
| 6:00 AM EST | 5:00 AM MDT | night |
| 7:00 AM EST | 6:00 AM MDT | — |
| 8:00 AM EST | 7:00 AM MDT | — |
| 9:00 AM EST | 8:00 AM MDT | — |
| 10:00 AM EST | 9:00 AM MDT | work hours |
| 11:00 AM EST | 10:00 AM MDT | work hours |
| 12:00 PM EST | 11:00 AM MDT | work hours |
| 1:00 PM EST | 12:00 PM MDT | work hours |
| 2:00 PM EST | 1:00 PM MDT | work hours |
| 3:00 PM EST | 2:00 PM MDT | work hours |
| 4:00 PM EST | 3:00 PM MDT | work hours |
| 5:00 PM EST | 4:00 PM MDT | — |
| 6:00 PM EST | 5:00 PM MDT | — |
| 7:00 PM EST | 6:00 PM MDT | — |
| 8:00 PM EST | 7:00 PM MDT | — |
| 9:00 PM EST | 8:00 PM MDT | — |
| 10:00 PM EST | 9:00 PM MDT | — |
| 11:00 PM EST | 10:00 PM MDT | night |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert EST to Calgary Time
Subtract 1 hour from the EST time to get Calgary Time.
Example: 9:00 AM EST = 8:00 AM MDT.
Across midnight: 12:00 AM EST = 11:00 PM MDT (previous day). The date changes, so always check the day as well as the hour.
Time difference between EST and Calgary Time
The time difference between EST and Calgary Time is not the same all year, because the two sides change for daylight saving time on different dates. In 2026 it works out like this:
- 31 Dec 2025 – 31 Oct 2026: Calgary Time is 2 hours behind of EST.
- 1 Nov 2026 – 30 Dec 2026: Calgary Time is 1 hour behind of EST.
EST and Calgary Time during daylight saving time
- EST next changes on 14 Mar 2027: clocks go forward one hour at 01:59 local time, from EST (UTC−5) to EDT (UTC−4).
- Calgary Time does not observe daylight saving time; it stays on UTC−6 all year.
Best time for a meeting between EST and Calgary Time
EST and Calgary Time share 7 hours of the 9 AM–5 PM working day. Any time between 10:00 AM and 5:00 PM EST lands between 9:00 AM and 4:00 PM MDT, inside working hours for both.
EST to Calgary Time FAQ
What is the time difference between EST and Calgary Time?
Right now MDT is 1 hour behind EST. The gap changes 2 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM EST in Calgary Time?
9:00 AM EST is 8:00 AM MDT.
What is 12 PM (noon) EST in Calgary Time?
12:00 PM EST is 11:00 AM MDT.
Is Calgary Time ahead of or behind EST?
MDT is 1 hour behind EST, so it is earlier in Calgary Time than in EST.
Does EST change for daylight saving time?
Yes. EST next changes on 14 Mar 2027, when clocks go forward one hour from EST to EDT.
Does Calgary Time change for daylight saving time?
No. Calgary Time stays on the same offset all year, so conversions never shift for daylight saving time.
What is the best time for a meeting between EST and Calgary Time?
EST and Calgary Time share 7 hours of the 9 AM–5 PM working day. Any time between 10:00 AM and 5:00 PM EST lands between 9:00 AM and 4:00 PM MDT, inside working hours for both.
Is ET the same as EST?
EST is the winter (standard) name of Eastern Time (ET). From March to November the same clocks are called EDT. This converter always uses the one in force on the date you choose.
Related conversions
Convert Calgary Time to EST
Convert EST to other time zones
Convert other time zones to Calgary Time
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.