Offset
The time difference between Colombia Time and Arabia Standard Time is 8 hours.
Colombia Time (COT) is behind Arabia Standard Time (AST).
COT: UTC-5
AST: UTC+3
Neither Colombia Time nor Arabia Standard Time is currently observing daylight saving time.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in Colombia Time and Arabia Standard Time don't overlap on the same weekday. Arabia Standard Time is 8 hours ahead of Colombia Time.
With some flexibility, there’s a workable window outside standard hours:
- 7 AM–12 PM in Colombia Time (3 PM–8 PM in Arabia Standard Time) — suggest 9:00 AM Colombia Time (5:00 PM Arabia Standard Time).
This means an early start or late finish for one side, but it’s a reasonable slot for a one-off meeting.
Note: the working week in Saudi Arabia runs Sunday–Thursday; Friday–Saturday is the weekend, so overlap on those days is limited.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
Colombia
- New Year's DayThu, Jan 1
- EpiphanyMon, Jan 12
- Saint Joseph's DayMon, Mar 23
- Maundy ThursdayThu, Apr 2
- Good FridayFri, Apr 3
- Labour DayFri, May 1
- Ascension DayMon, May 18
- Corpus ChristiMon, Jun 8
- Sacred HeartMon, Jun 15
- Saint Peter and Saint PaulMon, Jun 29
- Declaration of IndependenceMon, Jul 20
- Battle of BoyacáFri, Aug 7
- Assumption of MaryMon, Aug 17
- Columbus DayMon, Oct 12
- All Saints’ DayMon, Nov 2
- Independence of CartagenaMon, Nov 16
- Immaculate ConceptionTue, Dec 8
- Christmas DayFri, Dec 25
About these zones
Colombia Time is also known as COT. To call Colombia, dial +57.
Arabia Standard Time is also known as AST. To call Saudi Arabia, dial +966.
Arabia Standard Time is approximately 7,950 miles northeast of Colombia Time.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| COT | AST | Day |
|---|---|---|
| 12:00 am | 8:00 am | Same day |
| 1:00 am | 9:00 am | Same day |
| 2:00 am | 10:00 am | Same day |
| 3:00 am | 11:00 am | Same day |
| 4:00 am | 12:00 pm | Same day |
| 5:00 am | 1:00 pm | Same day |
| 6:00 am | 2:00 pm | Same day |
| 7:00 am | 3:00 pm | Same day |
| 8:00 am | 4:00 pm | Same day |
| 9:00 am | 5:00 pm | Same day |
| 10:00 am | 6:00 pm | Same day |
| 11:00 am | 7:00 pm | Same day |
| 12:00 pm | 8:00 pm | Same day |
| 1:00 pm | 9:00 pm | Same day |
| 2:00 pm | 10:00 pm | Same day |
| 3:00 pm | 11:00 pm | Same day |
| 4:00 pm | 12:00 am | +1 day |
| 5:00 pm | 1:00 am | +1 day |
| 6:00 pm | 2:00 am | +1 day |
| 7:00 pm | 3:00 am | +1 day |
| 8:00 pm | 4:00 am | +1 day |
| 9:00 pm | 5:00 am | +1 day |
| 10:00 pm | 6:00 am | +1 day |
| 11:00 pm | 7:00 am | +1 day |
Daylight saving time
Neither Colombia Time nor Arabia Standard Time observes daylight saving time. The offset between these zones remains constant year-round.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 5:44 AM
- Sunset
- 6:07 PM
- Day length
- 12h 23m
- Sunrise
- 5:05 AM
- Sunset
- 6:41 PM
- Day length
- 13h 36m
Cities in these zones
Cities in Colombia Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Colombia Time
- BOG
- CLO
- EOH
- MDE
Airports in Arabia Standard Time
- JED
- RUH
- MED
- DMM
Related conversions
Common conversions
- What is 9:00 am COT in AST?
- 9:00 am COT is 5:00 pm AST.
- What is 12:00 pm COT in AST?
- 12:00 pm COT is 8:00 pm AST.
- What is 12:30 pm COT in AST?
- 12:30 pm COT is 8:30 pm AST.
- What is 2:00 pm COT in AST?
- 2:00 pm COT is 10:00 pm AST.
- What is 5:00 pm COT in AST?
- 5:00 pm COT is 1:00 am AST, the next day.
- What is 11:30 pm COT in AST?
- 11:30 pm COT is 7:30 am AST, the next day.