EST to MSK Time Converter
MSK is 7 hours ahead of EST. The US East Coast is currently on EDT (UTC-4:00), and MSK is UTC+3:00.
Best Time to Call Between EST and MSK
Both zones are inside normal business hours between 9:00 AM and 10:00 AM EST — that's 4:00 PM to 5:00 PM MSK. That's a 1-hour window.
both at work EST only MSK only neither — hours along the strip are EST.
Common Times Converted
EST on the left, MSK on the right.
EST to MSK: Full 24-Hour Conversion Table
Shaded rows are working hours; the darker shade marks the hours when both zones are at work.
| EST | MSK | Working hours |
|---|---|---|
| 12:00 AM | 7:00 AM | — |
| 1:00 AM | 8:00 AM | — |
| 2:00 AM | 9:00 AM | MSK only |
| 3:00 AM | 10:00 AM | MSK only |
| 4:00 AM | 11:00 AM | MSK only |
| 5:00 AM | 12:00 PM | MSK only |
| 6:00 AM | 1:00 PM | MSK only |
| 7:00 AM | 2:00 PM | MSK only |
| 8:00 AM | 3:00 PM | MSK only |
| 9:00 AM | 4:00 PM | Both zones |
| 10:00 AM | 5:00 PM | EST only |
| 11:00 AM | 6:00 PM | EST only |
| 12:00 PM | 7:00 PM | EST only |
| 1:00 PM | 8:00 PM | EST only |
| 2:00 PM | 9:00 PM | EST only |
| 3:00 PM | 10:00 PM | EST only |
| 4:00 PM | 11:00 PM | EST only |
| 5:00 PM | 12:00 AM next day | — |
| 6:00 PM | 1:00 AM next day | — |
| 7:00 PM | 2:00 AM next day | — |
| 8:00 PM | 3:00 AM next day | — |
| 9:00 PM | 4:00 AM next day | — |
| 10:00 PM | 5:00 AM next day | — |
| 11:00 PM | 6:00 AM next day | — |
What EST and MSK Actually Are
EST — Eastern Standard Time
New York, Toronto, Washington DC, Atlanta, Miami, Boston. Standing at UTC-5:00 as written, and the region does change its clocks, so its live offset moves by an hour twice a year. The next change is on Sunday, November 1, 2026, to EST. Australia also uses EST for its own Eastern Standard Time (UTC+10), now more often written AEST.
Eastern Standard Time is only actually in force from early November to mid-March. For the other eight months the same region is on EDT, which is why so many EST conversions are quietly wrong.
MSK — Moscow Time
Moscow, Saint Petersburg, Minsk. Standing at UTC+3:00 as written, and the region does not change its clocks, so that offset holds all year. Russia abolished daylight saving in 2014, so Moscow stays on UTC+3 all year.
Russia scrapped daylight saving in 2011 by staying permanently on summer time, found the dark winter mornings unpopular, and settled on permanent standard time in 2014.
What This Means in Practice
This gap is not fixed
EST changes its clocks and MSK does not, so the difference between them moves by an hour twice a year. A recurring meeting set now will drift for one side from Sunday, November 1, 2026 unless someone resets it.
Major Cities in Each Zone
Cities on EST
Cities on MSK
Frequently Asked Questions
What is the time difference between EST and MSK?
MSK is 7 hours ahead of EST. That is the live figure. Taken strictly as written, the gap between EST and MSK is 8 hours — the two differ because at least one of these regions is currently on daylight saving.
What is 9:00 AM EST in MSK?
9:00 AM EST is 4:00 PM MSK.
What are the best hours to schedule a call between EST and MSK?
Between 9:00 AM and 10:00 AM EST, which is 4:00 PM to 5:00 PM MSK. Both sides are inside normal business hours through that window.
Does the difference between EST and MSK change during the year?
Yes. EST observes daylight saving and MSK does not, so the gap shifts by an hour at least twice a year. The next clock change is on Sunday, November 1, 2026.
Does EST always mean Eastern Standard Time?
Australia also uses EST for its own Eastern Standard Time (UTC+10), now more often written AEST.
Does MSK always mean Moscow Time?
Russia abolished daylight saving in 2014, so Moscow stays on UTC+3 all year.