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Convert Eastern European Summer Time to Mountain Daylight Time

Instantly convert Eastern European Summer Time (EEST) to Mountain Daylight Time (MDT) with our free online calculator.

Reviewed by Christopher FloiedUpdated

Eastern European Summer Time

08:20:54 AM

Wed, Jun 24 (EEST)

Mountain Daylight Time

11:20:54 PM

Tue, Jun 23 (MDT)

MDT is -9 hours from EEST

Convert a Specific Time

EEST

24-Hour Comparison

EESTMDT
12:00 AM3:00 PM(-1d)
1:00 AM4:00 PM(-1d)
2:00 AM5:00 PM(-1d)
3:00 AM6:00 PM(-1d)
4:00 AM7:00 PM(-1d)
5:00 AM8:00 PM(-1d)
6:00 AM9:00 PM(-1d)
7:00 AM10:00 PM(-1d)
8:00 AM11:00 PM(-1d)
9:00 AM12:00 AM
10:00 AM1:00 AM
11:00 AM2:00 AM
12:00 PM3:00 AM
1:00 PM4:00 AM
2:00 PM5:00 AM
3:00 PM6:00 AM
4:00 PM7:00 AM
5:00 PM8:00 AM
6:00 PM9:00 AM
7:00 PM10:00 AM
8:00 PM11:00 AM
9:00 PM12:00 PM
10:00 PM1:00 PM
11:00 PM2:00 PM

How to Convert Eastern European Summer Time to Mountain Daylight Time

Formula

To convert Eastern European Summer Time (EEST) to Mountain Daylight Time (MDT): Convert EEST to MDT

About Eastern European Summer Time (EEST)

Eastern European Summer Time (EEST, IANA: Europe/Athens during DST window) is the summer-time variant of EET, set at UTC+3:00 — observed from the last Sunday of March to the last Sunday of October per EU Directive 2000/84/EC. EEST shares the same UTC offset as Moscow Standard Time (MSK), Saudi Arabia Standard Time (AST-SA), and East Africa Time (EAT). After the 2018 EU proposal to abolish twice-yearly clock changes (postponed indefinitely), the question of whether EEST countries would permanently stay on summer time (UTC+3) or revert to year-round EET (UTC+2) remains unresolved. EEST serves the same ~50 million population as EET (Greece, Cyprus, Bulgaria, Romania, Moldova, Ukraine, Lithuania, Latvia, Estonia, Finland). Affects: ASE (Athens Stock Exchange) summer trading hours, summer-festival schedules in Greek islands (Mykonos, Santorini, Ios), Finnish midsummer Juhannus celebrations, and Black Sea cruise-ship port arrival times at Constanța Romania + Varna Bulgaria + Odesa Ukraine.

About Mountain Daylight Time (MDT)

Mountain Daylight Time (MDT, IANA: America/Denver during DST window) is the summer-time variant of MST, set at UTC-6:00 — observed from the second Sunday in March to the first Sunday in November per the Energy Policy Act of 2005. MDT shares the same UTC offset as Central Standard Time (CST), which can cause cross-time-zone scheduling confusion during the DST transition windows in March and November. The Navajo Nation in northeastern Arizona does observe MDT (unlike the rest of Arizona), creating one of the rare US sub-state time-zone exceptions per the Navajo Nation Council's 1968 resolution. MDT applies in Colorado, Utah, Wyoming, Montana, Idaho east, New Mexico, parts of Texas, and Canadian Rocky Mountain provinces (Alberta, eastern BC). Used in coordination of: Denver International Airport flight operations, ski-area lift hours during shoulder-season DST window, Yellowstone National Park ranger schedules, US National Renewable Energy Lab operations, and FAA Albuquerque ARTCC ATC operations.

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