MSK to AST Converter
AST is 7 hours behind MSK. 9:00 AM MSK = 2:00 AM AST.
AST is 7 hours behind MSK at the moment. To convert MSK to AST, subtract 7 hours from the MSK time: 9:00 AM MSK = 2:00 AM AST.
MSK (Moscow Time) is used in Moscow, St Petersburg and western Russia; Belarus. AST (Atlantic Time) is used in Nova Scotia, New Brunswick, PEI; Puerto Rico and the Eastern Caribbean (all year).
AST here is Atlantic Standard Time, not Arabia Standard Time.
MSK to AST time conversion table
MSK to AST on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| MSK | AST | Day |
|---|---|---|
| 12:00 AM MSK | 5:00 PM AST | previous day |
| 1:00 AM MSK | 6:00 PM AST | previous day |
| 2:00 AM MSK | 7:00 PM AST | previous day |
| 3:00 AM MSK | 8:00 PM AST | previous day |
| 4:00 AM MSK | 9:00 PM AST | previous day |
| 5:00 AM MSK | 10:00 PM AST | previous day |
| 6:00 AM MSK | 11:00 PM AST | previous day |
| 7:00 AM MSK | 12:00 AM AST | night |
| 8:00 AM MSK | 1:00 AM AST | night |
| 9:00 AM MSK | 2:00 AM AST | night |
| 10:00 AM MSK | 3:00 AM AST | night |
| 11:00 AM MSK | 4:00 AM AST | night |
| 12:00 PM MSK | 5:00 AM AST | night |
| 1:00 PM MSK | 6:00 AM AST | — |
| 2:00 PM MSK | 7:00 AM AST | — |
| 3:00 PM MSK | 8:00 AM AST | — |
| 4:00 PM MSK | 9:00 AM AST | work hours |
| 5:00 PM MSK | 10:00 AM AST | — |
| 6:00 PM MSK | 11:00 AM AST | — |
| 7:00 PM MSK | 12:00 PM AST | — |
| 8:00 PM MSK | 1:00 PM AST | — |
| 9:00 PM MSK | 2:00 PM AST | — |
| 10:00 PM MSK | 3:00 PM AST | — |
| 11:00 PM MSK | 4:00 PM AST | — |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert MSK to AST
Subtract 7 hours from the MSK time to get AST.
Example: 9:00 AM MSK = 2:00 AM AST.
Across midnight: 1:00 AM MSK = 6:00 PM AST (previous day). The date changes, so always check the day as well as the hour.
Time difference between MSK and AST
The time difference between MSK and AST is not the same all year, because the two sides change for daylight saving time on different dates. In 2026 it works out like this:
- 1 Jan 2026 – 7 Mar 2026: AST is 7 hours behind of MSK.
- 8 Mar 2026 – 31 Oct 2026: AST is 6 hours behind of MSK.
- 1 Nov 2026 – 31 Dec 2026: AST is 7 hours behind of MSK.
MSK and AST during daylight saving time
- MSK does not observe daylight saving time; it stays on UTC+3 all year.
- AST next changes on 14 Mar 2027: clocks go forward one hour at 01:59 local time, from AST (UTC−4) to ADT (UTC−3).
Best time for a meeting between MSK and AST
MSK and AST share 1 hour of the 9 AM–5 PM working day. Any time between 4:00 PM and 5:00 PM MSK lands between 9:00 AM and 10:00 AM AST, inside working hours for both.
MSK to AST FAQ
What is the time difference between MSK and AST?
Right now AST is 7 hours behind MSK. The gap changes 3 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM MSK in AST?
9:00 AM MSK is 2:00 AM AST.
What is 12 PM (noon) MSK in AST?
12:00 PM MSK is 5:00 AM AST.
Is AST ahead of or behind MSK?
AST is 7 hours behind MSK, so it is earlier in AST than in MSK.
Does MSK change for daylight saving time?
No. MSK stays on the same offset all year, so conversions never shift for daylight saving time.
Does AST change for daylight saving time?
Yes. AST next changes on 14 Mar 2027, when clocks go forward one hour from AST to ADT.
What is the best time for a meeting between MSK and AST?
MSK and AST share 1 hour of the 9 AM–5 PM working day. Any time between 4:00 PM and 5:00 PM MSK lands between 9:00 AM and 10:00 AM AST, inside working hours for both.
Related conversions
Convert AST to MSK
Convert MSK to other time zones
Convert other time zones to AST
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.