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EASST/EAST

Easter Island Summer Time

UTC−5

12am

3am

6am

9am

12pm

3pm

6pm

9pm

EAST is not used on this date.

This converter uses EASST (UTC−5), as in Easter.

Keep EAST (UTC−6)

MDT/MST

Mountain Daylight Time

UTC−6

1h behind

12am

3am

6am

9am

12pm

3pm

6pm

9pm

Mountain Time is on daylight saving time: MDT (UTC−6) until Sun, Nov 1.

Arizona stays on MST (UTC−7).

Denver · MDT (UTC−6)Arizona · MST all year (UTC−7)

Quick answers

Selected conversion

7:00 am07:00 EASST (UTC-5), Oct 16, 2026 = 6:00 am06:00 MDT (UTC-6), Oct 16, 2026

EASST is 1 hour ahead of MDT.

EAST and MST examples

These examples always use EAST (UTC-6) 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.

EAST is 1 hour ahead of MST.

Most of Arizona stays on MST (UTC-7) all year. Places such as Denver use MDT (UTC-6) during daylight saving time, one hour later. For daylight-time examples, use EAST to MDT.

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 6:00 pm in EAST correspond to 9:00 am to 6:00 pm in MDT, working hours of 9:00 am to 6:00 pm in EASST correspond to 8:00 am to 5:00 pm in MDT, or working hours of 9:00 am to 6:00 pm in EASST correspond to 7:00 am to 4:00 pm in MST.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in EAST correspond to 09:00 to 18:00 in MDT, working hours of 09:00 to 18:00 in EASST correspond to 08:00 to 17:00 in MDT, or working hours of 09:00 to 18:00 in EASST correspond to 07:00 to 16:00 in MST.

Compare EAST 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 1 hour ahead of Mountain Daylight Time.
7:00 am07:00 in EASST is 6:00 am06:00 in MDT

EASST to MDT call time
Best time for a conference call or a meeting is between 10am-6pm10:00-18:00 in EASST which corresponds to 9am-5pm09:00-17:00 in MDT

7:00 am07:00 Easter Island Summer Time (EASST). Offset UTC -5:00 hours
6:00 am06:00 Mountain Daylight Time (MDT). Offset UTC -6:00 hours

7:00 am07:00 EASST / 6:00 am06:00 MDT

Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.

Hourly time comparison
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Easter Island Standard Time

Offset: EAST is 6 hours behind Greenwich Mean Time (GMT).

Countries using this time zone: Chile

Principal Cities: The largest city in the EAST time zone is Hanga Roa in Chile, with about 7,322 people.

Map of the areas on Easter Island Standard Time (EAST) — EAST part of the year
Today the shaded areas are on UTC−5.
Open the world time zone map © OpenStreetMap

Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Easter Island Summer Time (EASST).

End: Easter Island Standard Time (EAST) ended on Saturday, September 5, 2026 at 10:00 pm22:00 local time and clocks were set one hour forward to Saturday, September 5, 2026, 11:00 pm23:00 local daylight time instead. Standard time ends annually on the first Saturday of September.

Start: Easter Island Standard Time (EAST) starts on Saturday, April 3, 2027 at 10:00 pm22:00 local time and clocks are set one hour back to Saturday, April 3, 2027, 9:00 pm21:00. Standard time starts annually on the first Saturday of April.

See Chile daylight saving time and upcoming clock changes worldwide.

EAST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data

-06 - basic short
-0600 - basic
-06:00 - extended

Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers

-0600 - sign character (-) followed by a four digit time providing hours (06) and minutes (00) of the offset. Indicates an offset of six hours to the west of the zero meridian.

Military/NATO: Used by the U.S. military, Chinese military and others

Sierra - Military abbreviation for EAST
S - short form of 'Sierra'

Time zones with the GMT -6 offset:

CST - Central Standard Time
CT - Central Time
MDT - Mountain Daylight Time
EAST - Easter Island Standard Time
GALT - Galapagos Time
S - Sierra Time Zone

Mountain Standard Time

Offset: MST is 7 hours behind Greenwich Mean Time (GMT).

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 1.65 million people. Other major cities in this time zone include Ciudad Juárez, Hermosillo, Culiacán, Denver.

French: HNR - Heure Normale des Rocheuses

Spanish: MT - Zona Pacífico

Map of the areas on Mountain Standard Time (MST) — MST all year MST part of the year
Today the lighter areas are on UTC−6 (MDT).
Open the world time zone map © OpenStreetMap

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).

End: Mountain Standard Time (MST) ended on Sunday, March 8, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am03:00 local daylight time instead. Standard time ends annually on the second Sunday of March.

Start: Mountain Standard Time (MST) starts on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, November 1, 2026, 1:00 am01:00. Standard time starts annually on the first Sunday of November.

See USA daylight saving time and upcoming clock changes worldwide.

MST representations, usage and related time zones