Updating current time…
South Dakota, USAMDT
UTC−6
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EDT/EST
UTC−4
2h ahead
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6am
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12pm
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9pm
Eastern Time is on daylight saving time: EDT (UTC−4) until Sun, Nov 1.

Quick answers

Selected conversion

6:00 am06:00 MDT (UTC-6), Oct 15, 2026 = 8:00 am08:00 EDT (UTC-4), Oct 15, 2026

Ellsworth Air Force Base is 2 hours behind EDT.

How the time difference changes

For most of the year, Ellsworth Air Force Base is 2 hours behind EDT. From Nov 1, 2026 to Mar 14, 2027, Ellsworth Air Force Base is 2 hours behind EST. Briefly around clock changes, Ellsworth Air Force Base is 1 hour behind EST or Ellsworth Air Force Base is 3 hours behind EDT.

For most of the year, working hours of 9:00 am to 5:00 pm in Ellsworth Air Force Base correspond to 11:00 am to 7:00 pm in EDT. At other times of the year, working hours of 9:00 am to 5:00 pm in Ellsworth Air Force Base correspond to 11:00 am to 7:00 pm in EST.For most of the year, working hours of 09:00 to 17:00 in Ellsworth Air Force Base correspond to 11:00 to 19:00 in EDT. At other times of the year, working hours of 09:00 to 17:00 in Ellsworth Air Force Base correspond to 11:00 to 19:00 in EST.

Compare Ellsworth Air Force Base time with EST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

MDT (Mountain Daylight Time) is 2 hours behind Eastern Daylight Time.
6:00 am06:00 in Ellsworth Air Force Base, SD, USA is 8:00 am08:00 in EDT

Ellsworth Air Force Base to EDT call time
Best time for a conference call or a meeting is between 9am-3pm09:00-15:00 in Ellsworth Air Force Base which corresponds to 11am-5pm11:00-17:00 in EDT

6:00 am06:00 MDT (Mountain Daylight Time) (Ellsworth Air Force Base, SD, USA). Offset UTC -6:00 hours
8:00 am08:00 Eastern Daylight Time (EDT). Offset UTC -4:00 hours

6:00 am06:00 Ellsworth Air Force Base, SD, USA / 8:00 am08:00 EDT

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Hourly time comparison
Ellsworth Air Force Base, SD, USAEDT
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Ellsworth Air Force Base Time Zone and Facts

Time Zone

Abbreviation / Offset
MDT – Mountain Daylight Time, UTC-6 (now, daylight saving time)
MST – Mountain Standard Time, UTC-7 (standard time)
Daylight Saving Time Ends
123456789101112Sunday, November 1, 2026 at 2:00 amSunday, November 1, 2026 at 02:00: clocks go back 1 hour to 1:00 am01:00 (MST). DST ends on the 1st Sunday of November each year. Also called Fall Back or Winter Time.
Daylight Saving Time Starts
123456789101112Sunday, March 14, 2027 at 2:00 amSunday, March 14, 2027 at 02:00: clocks go forward 1 hour to 3:00 am03:00 (MDT). DST starts on the 2nd Sunday of March each year. Also called Spring Forward or Summer Time.

Ellsworth Air Force Base Facts

Country
USA
State
South Dakota
Population
8,000
Currency
Dollar (USD)
Geographic Coordinates
44° 08' N Latitude / 103° 04' W Longitude
International Dialing Code
+1
More About Ellsworth Air Force Base

Eastern Standard Time

Offset: EST is 5 hours behind Greenwich Mean Time (GMT).

Countries using this time zone: Bahamas, Canada, Haiti, Jamaica, Cayman Islands, Mexico, Panama, Turks & Caicos Is, United States

Principal Cities: The largest city in the EST time zone is New York City in the United States, with about 8.804 million people. Other major cities in this time zone include Toronto, Montréal, Philadelphia, Port-au-Prince.

French: HNE - Heure Normale de l'Est

Spanish: ET - Tiempo del Este, ET - Zona Sureste

Map of the areas on Eastern Standard Time (EST)
EST all year EST part of the year

Today the lighter areas are on UTC−4 (EDT).

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

123456789101112End: Eastern Standard Time (EST) 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: Eastern Standard Time (EST) 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 upcoming clock changes worldwide.

EST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -05 - basic short
  • -0500 - basic
  • -05:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -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.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Romeo - Military abbreviation for EST
  • R - short form of 'Romeo'
IANA/Olson: Reflects EST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Atikokan
  • America/Cancun
  • America/Cayman
  • America/Coral_Harbour
  • 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/Jamaica
  • America/Kentucky/Louisville
  • America/Kentucky/Monticello
  • America/Louisville
  • America/Montreal
  • America/Nassau
  • America/New_York
  • America/Nipigon
  • America/Panama
  • America/Pangnirtung
  • America/Port-au-Prince
  • America/Thunder_Bay
  • America/Toronto
  • Canada/Eastern
  • EST
  • EST5EDT
  • Jamaica
  • US/East-Indiana
  • US/Eastern
  • US/Michigan
Time zones with the GMT -5 offset:
  • 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