EASST to MST Converter
Quick answers
Selected conversion
The selected date and time will appear here when the converter loads.
EASST and MST examples
These examples always use EASST (UTC-5) and MST (UTC-7). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
EASST is 2 hours ahead of MST.
How the time difference changes
Depending on seasonal clock changes, EAST and MDT have the same time, EASST is 1 hour ahead of MDT, or EASST is 2 hours ahead of MST.
Depending on seasonal clock changes, working hours of 9:00 am to 5:00 pm in EAST correspond to 9:00 am to 5:00 pm in MDT, working hours of 9:00 am to 5:00 pm in EASST correspond to 8:00 am to 4:00 pm in MDT, or working hours of 9:00 am to 5:00 pm in EASST correspond to 7:00 am to 3:00 pm in MST.
Compare EASST time with MST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Easter Island Summer Time is 2 hours ahead of Mountain Standard Time
7:00 am07:00 in EASST is 5:00 am05:00 in MST
EASST to MST call time
Best time for a conference call or a meeting is between 11am-5pm in EASST which corresponds to 9am-3pm in MST
7:00 am07:00 Easter Island Summer Time (EASST). Offset UTC -5:00 hours
5:00 am05:00 Mountain Standard Time (MST). Offset UTC -7:00 hours
7:00 am07:00 EASST / 5:00 am05:00 MST
| EASST | MST |
|---|---|
| 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 |
| 00:00 | 22:00 |
| 01:00 | 23:00 |
| 02:00 | 00:00 |
| 03:00 | 01:00 |
| 04:00 | 02:00 |
| 05:00 | 03:00 |
| 06:00 | 04:00 |
| 07:00 | 05:00 |
| 08:00 | 06:00 |
| 09:00 | 07:00 |
| 10:00 | 08:00 |
| 11:00 | 09:00 |
| 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 |
Easter Island Summer Time
Offset: EASST is 5 hours behind Greenwich Mean Time (GMT) and is used in Pacific
Countries using this time zone: Chile

Daylight Saving: Easter Island Summer Time (EASST) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Easter Island Standard Time (EAST).
Start: Easter Island Summer Time (EASST) started on Saturday, September 6, 2025 at 10:00 pm local time and clocks were set one hour forward to Saturday, September 6, 2025, 11:00 pm. Daylight saving starts annually on the first Saturday of September
End: Easter Island Summer Time (EASST) ends on Saturday, April 4, 2026 at 10:00 pm local time and clocks are set one hour back to Saturday, April 4, 2026, 9:00 pm local standard time instead. Daylight saving ends annually on the first Saturday of April
EASST representations, usage and related time zones
- -05 - basic short
- -0500 - basic
- -05:00 - extended
- -0500 - sign character (-) followed by a four digit time providing hours (05) and minutes (00) of the offset. Indicates an offset of five hours to the west of the zero meridian.
- Romeo - Military abbreviation for EASST
- R - short form of 'Romeo'
- CDT - Central Daylight Time
- EST - Eastern Standard Time
- ET - Eastern Time
- COT - Colombia Time
- CST - Cuba Standard Time
- EASST - Easter Island Summer Time
- ECT - Ecuador Time
- PET - Peru Time
- R - Romeo Time Zone
Mountain Standard Time
Offset: MST is 7 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries using this time zone: Canada, Mexico, United States
Principal Cities: The largest city in the MST time zone is Phoenix in the United States, with about 1.446 million people. Other major cities in this time zone include Calgary, Edmonton, El Paso, Denver.
French: HNR - Heure Normale des Rocheuses
Spanish: MT - Zona Pacífico

Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Mountain Daylight Time (MDT).
Start: Mountain Standard Time (MST) started on Sunday, November 2, 2025 at 2:00 am local time and clocks were set one hour back to Sunday, November 2, 2025, 1:00 am. Standard time starts annually on the first Sunday of November.
End: Mountain Standard Time (MST) ends on Sunday, March 8, 2026 at 2:00 am local time and clocks are set one hour forward to Sunday, March 8, 2026, 3:00 am local daylight time instead. Standard time ends annually on the second Sunday of March.
MST representations, usage and related time zones
- -07 - basic short
- -0700 - basic
- -07:00 - extended
- -0700 - sign character (-) followed by a four digit time providing hours (07) and minutes (00) of the offset. Indicates an offset of seven hours to the west of the zero meridian.
- Tango - Military abbreviation for MST
- T - short form of 'Tango'
- America/Boise
- America/Cambridge_Bay
- America/Ciudad_Juarez
- America/Creston
- America/Dawson
- America/Dawson_Creek
- America/Denver
- America/Edmonton
- America/Fort_Nelson
- America/Hermosillo
- America/Inuvik
- America/Mazatlan
- America/Phoenix
- America/Shiprock
- America/Whitehorse
- America/Yellowknife
- Canada/Mountain
- Canada/Yukon
- MST
- MST7MDT
- Mexico/BajaSur
- Navajo
- US/Arizona
- US/Mountain
- MST - Mountain Standard Time
- PDT - Pacific Daylight Time
- YST - Yukon Standard Time
- T - Tango Time Zone
