AST to MSK Converter

Converting Atlantic Standard Time to Moscow Standard Time

Atlantic Standard Time (AST) and Moscow Standard Time (MSK) are separated by a 7 hours time difference. MSK is 7 hours ahead of AST. AST is UTC-4, used in Canada, Puerto Rico, US Virgin Islands, while MSK is UTC+3, used in Russia.

When converting from AST to MSK, the key reference points to remember are: 9:00 AM AST equals 4:00 PM MSK, 12:00 PM noon AST equals 7:00 PM MSK, and 5:00 PM AST equals 12:00 AM MSK. The conversion table above shows every hour of the day mapped between these two time zones.

Scheduling Across AST and MSK

For professionals scheduling meetings between AST and MSK, finding overlapping business hours is essential. Standard business hours are typically 9:00 AM to 5:00 PM in each time zone. Given the 7 hours difference, the window of overlap may be limited. Use the highlighted working hours in the conversion table above to quickly identify suitable meeting times.

Daylight Saving Time Considerations

AST observes Daylight Saving Time, switching to ADT (UTC-3) during summer months. MSK does not observe DST, staying at UTC+3 year-round. During DST transitions, the time difference between these zones may temporarily change by 1 hour. Always verify the current offset during spring and fall transition periods.