Convert Colombia Time to Atlantic Standard Time - Quick & Accurate
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Hover over any hour to see corresponding time in both zones
To schedule a meeting between COT and AST:
Pro Tip: Schedule calls during the overlap window for optimal convenience for both time zones
| COT Time | AST Time | Context |
|---|---|---|
| 12:00 AM | 01:00 AM | Midnight COT |
| 01:00 AM | 02:00 AM | Late Night |
| 02:00 AM | 03:00 AM | Late Night |
| 03:00 AM | 04:00 AM | Late Night |
| 04:00 AM | 05:00 AM | Late Night |
| 05:00 AM | 06:00 AM | Late Night |
| 06:00 AM | 07:00 AM | Early Morning COT |
| 07:00 AM | 08:00 AM | Night Time |
| 08:00 AM | 09:00 AM | Night Time |
| 09:00 AM | 10:00 AM | Work Starts COT |
| 10:00 AM | 11:00 AM | Night Time |
| 11:00 AM | 12:00 PM | Night Time |
Bogotá
America/Bogota
Halifax
America/Halifax
AST (Atlantic Standard Time) is 1 hours ahead of COT (Colombia Time). This means when it's 12:00 PM in Bogotá (COT), it's 1:00 PM in Halifax (AST).
The best time to call from COT to AST is during overlapping business hours. For COT callers, schedule between 9:00 AM - 12:00 PM COT to ensure both parties are within standard business hours.
The time difference may change during daylight saving transitions if one region observes DST while the other doesn't. Colombia Time (UTC-5) and Atlantic Standard Time (UTC-4 (AST) / UTC-3 (ADT)) may have different DST schedules.
COT includes cities like Bogotá. AST includes cities like Halifax. Both time zones cover important business and cultural centers.
In 2025, DST in North America starts on March 9 at 2:00 AM and ends on November 2 at 2:00 AM. Other regions may have different DST schedules or not observe DST at all.