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Convert Atlantic Standard Time (AST) to Mountain Standard Time (MST, UTC-7) for regional business calls. Free converter with real-time conversion, meeting time planner, and business hours comparison for AST to MST coordination. Includes 24-hour conversion table and live time displays. Perfect for international scheduling and global team collaboration. Works on all devices with accurate, reliable results.
Mountain Standard Time is 3 hours behind Atlantic Standard Time
Atlantic Standard Time to Mountain Standard Time full day schedule
| 🇨🇦 Atlantic Standard Time | 🇺🇸 Mountain Standard Time |
|---|---|
|
12:00 AM
|
9:00 PM
(previous day)
|
|
1:00 AM
|
10:00 PM
(previous day)
|
|
2:00 AM
|
11:00 PM
(previous day)
|
|
3:00 AM
|
12:00 AM
|
|
4:00 AM
|
1:00 AM
|
|
5:00 AM
|
2:00 AM
|
|
6:00 AM
|
3:00 AM
|
|
7:00 AM
|
4:00 AM
|
|
8:00 AM
|
5:00 AM
|
|
9:00 AM
|
6:00 AM
|
|
10:00 AM
|
7:00 AM
|
|
11:00 AM
|
8:00 AM
|
|
12:00 PM
|
9:00 AM
|
|
1:00 PM
|
10:00 AM
|
|
2:00 PM
|
11:00 AM
|
|
3:00 PM
|
12:00 PM
|
|
4:00 PM
|
1:00 PM
|
|
5:00 PM
|
2:00 PM
|
|
6:00 PM
|
3:00 PM
|
|
7:00 PM
|
4:00 PM
|
|
8:00 PM
|
5:00 PM
|
|
9:00 PM
|
6:00 PM
|
|
10:00 PM
|
7:00 PM
|
|
11:00 PM
|
8:00 PM
|
Best times for AST ↔ MST meetings and calls
Based on standard business hours (9:00 AM - 6:00 PM) in each time zone
Detailed timezone specifications and regional data
Source timezone
Target timezone