EDT to MDT Converter
Time Difference
Eastern Daylight Time is 2 hours ahead of Mountain Daylight Time
11:30 pm23:30 in EDT is 9:30 pm21:30 in MDT
EDT to MDT call time
Best time for a conference call or a meeting is between 10am-6pm in EDT which corresponds to 8am-4pm in MDT
11:30 pm23:30 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
9:30 pm21:30 Mountain Daylight Time (MDT). Offset UTC -6:00 hours
11:30 pm23:30 EDT / 9:30 pm21:30 MDT
EDT | MDT |
---|---|
12am (midnight) | 10pm |
1am | 11pm |
2am | 12am (midnight) |
3am | 1am |
4am | 2am |
5am | 3am |
6am | 4am |
7am | 5am |
8am | 6am |
9am | 7am |
10am | 8am |
11am | 9am |
12pm (noon) | 10am |
1pm | 11am |
2pm | 12pm (noon) |
3pm | 1pm |
4pm | 2pm |
5pm | 3pm |
6pm | 4pm |
7pm | 5pm |
8pm | 6pm |
9pm | 7pm |
10pm | 8pm |
11pm | 9pm |
0:00 | 22:00 |
1:00 | 23:00 |
2:00 | 0:00 |
3:00 | 1:00 |
4:00 | 2:00 |
5:00 | 3:00 |
6:00 | 4:00 |
7:00 | 5:00 |
8:00 | 6:00 |
9:00 | 7:00 |
10:00 | 8:00 |
11:00 | 9:00 |
12:00 | 10:00 |
13:00 | 11:00 |
14:00 | 12:00 |
15:00 | 13:00 |
16:00 | 14:00 |
17:00 | 15:00 |
18:00 | 16:00 |
19:00 | 17:00 |
20:00 | 18:00 |
21:00 | 19:00 |
22:00 | 20:00 |
23:00 | 21:00 |
Eastern Daylight Time
Offset: EDT is 4 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries: It is used in following countries: Bahamas, Canada, Haiti, Turks & Caicos Is, United States
Principal Cities: The largest city in the EDT timezone is New York City from USA with population about 8.175 million people. Other major cities in the area are Toronto, Montreal, Brooklyn, Borough of Queens
French: HAE - Heure Avancée de l'Est
Spanish: EDT - Tiempo de verano del Este, ET - Zona Sureste

Daylight Saving: Eastern Daylight Time (EDT) is a daylight saving/summer timezone, however during winter some places switch clocks for one hour back and observe Eastern Standard Time (EST).
Start: Eastern Daylight Time (EDT) started on Sunday, March 9, 2025 at 2:00 am local time and clocks were set one hour forward to Sunday, March 9, 2025, 3:00 am. Daylight saving starts annually the on second Sunday of March
End: Eastern Daylight Time (EDT) ends on Sunday, November 2, 2025 at 2:00 am local time and clocks are set one hour back to Sunday, November 2, 2025, 1:00 am local standard time instead. Daylight saving ends annually the on first Sunday of November
EDT representations, usage and related time zones
- -04 - basic short
- -0400 - basic
- -04:00 - extended
- -0400 - sign character (-) followed by a four digit time providing hours (04) and minutes (00) of the offset. Indicates four hour and zero minutes time differences to the west of the zero meridian.
- Quebec - Military abbreviation for EDT
- Q - short form of 'Quebec'
- America/Detroit
- America/Fort_Wayne
- America/Grand_Turk
- America/Indiana/Indianapolis
- America/Indiana/Marengo
- America/Indiana/Petersburg
- America/Indiana/Vevay
- America/Indiana/Vincennes
- America/Indiana/Winamac
- America/Indianapolis
- America/Iqaluit
- America/Kentucky/Louisville
- America/Kentucky/Monticello
- America/Louisville
- America/Montreal
- America/Nassau
- America/New_York
- America/Nipigon
- America/Pangnirtung
- America/Port-au-Prince
- America/Thunder_Bay
- America/Toronto
- Canada/Eastern
- EST5EDT
- US/East-Indiana
- US/Eastern
- US/Michigan
- AST - Atlantic Standard Time
- EDT - Eastern Daylight Time
- AMT - Amazon Time
- BOT - Bolivia Time
- CDT - Cuba Daylight Time
- CLT - Chile Standard Time
- FKT - Falkland Island Time
- GYT - Guyana Time
- HLV - Hora Legal de Venezuela
- PYT - Paraguay Time
- Q - Quebec Time Zone
- VET - Venezuelan Standard Time
Mountain Daylight Time
Offset: MDT is 6 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries: It is used in following countries: Canada, Mexico, United States
Principal Cities: The largest city in the MDT timezone is Calgary from Canada with population about 1.02 million people. Other major cities in the area are Edmonton, El Paso, Denver, Albuquerque
French: HAR - Heure Avancée des Rocheuses
Spanish: MT - Zona Pacífico

Daylight Saving: Mountain Daylight Time (MDT) is a daylight saving/summer timezone, however during winter some places switch clocks for one hour back and observe Mountain Standard Time (MST).
Start: Mountain Daylight Time (MDT) started on Sunday, March 9, 2025 at 2:00 am local time and clocks were set one hour forward to Sunday, March 9, 2025, 3:00 am. Daylight saving starts annually the on second Sunday of March
End: Mountain Daylight Time (MDT) ends on Sunday, November 2, 2025 at 2:00 am local time and clocks are set one hour back to Sunday, November 2, 2025, 1:00 am local standard time instead. Daylight saving ends annually the on first Sunday of November
MDT representations, usage and related time zones
- -06 - basic short
- -0600 - basic
- -06:00 - extended
- -0600 - sign character (-) followed by a four digit time providing hours (06) and minutes (00) of the offset. Indicates six hour and zero minutes time differences to the west of the zero meridian.
- Sierra - Military abbreviation for MDT
- S - short form of 'Sierra'
- America/Boise
- America/Cambridge_Bay
- America/Ciudad_Juarez
- America/Denver
- America/Edmonton
- America/Inuvik
- America/Shiprock
- America/Yellowknife
- Canada/Mountain
- MST7MDT
- Navajo
- US/Mountain
- CST - Central Standard Time
- CT - Central Time
- MDT - Mountain Daylight Time
- EAST - Easter Island Standard Time
- GALT - Galapagos Time
- S - Sierra Time Zone