MST to EAST Converter

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MDT/MST
Mountain Daylight Time
UTC−6
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)
EASST/EAST
Easter Island Summer Time
UTC−5
1h ahead
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)

Quick answers

Selected conversion

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

MDT is 1 hour behind EASST.

MST and EAST examples

These examples always use MST (UTC-7) and EAST (UTC-6). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

MST is 1 hour behind EAST.

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 MDT to EAST.

How the time difference changes

Depending on seasonal clock changes, MDT and EAST have the same time, MDT is 1 hour behind EASST, or MST is 2 hours behind EASST.

Depending on seasonal clock changes, working hours of 9:00 am to 6:00 pm in MDT correspond to 9:00 am to 6:00 pm in EAST, working hours of 9:00 am to 6:00 pm in MDT correspond to 10:00 am to 7:00 pm in EASST, or working hours of 9:00 am to 6:00 pm in MST correspond to 11:00 am to 8:00 pm in EASST.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in MDT correspond to 09:00 to 18:00 in EAST, working hours of 09:00 to 18:00 in MDT correspond to 10:00 to 19:00 in EASST, or working hours of 09:00 to 18:00 in MST correspond to 11:00 to 20:00 in EASST.

Compare MST time with EAST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

Mountain Daylight Time is 1 hour behind Easter Island Summer Time.
6:00 am06:00 in MDT is 7:00 am07:00 in EASST

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

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

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

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
MDTEASST
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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).

123456789101112End: 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.

123456789101112Start: 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

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -07 - basic short
  • -0700 - basic
  • -07:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -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.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Tango - Military abbreviation for MST
  • T - short form of 'Tango'
IANA/Olson: Reflects MST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • 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
Time zones with the GMT -7 offset:
  • MST - Mountain Standard Time
  • PDT - Pacific Daylight Time
  • YST - Yukon Standard Time
  • T - Tango Time Zone

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).

123456789101112End: 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.

123456789101112Start: 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
EST to ISTGMT to ESTPST to ESTEST to GMTPST to GMT