World Timezones

AST to COT Converter

Compare COT to AST instead
Arabia Standard Time7:36 amFri, Jun 5
Arabia Standard TimeAST
Middle East · UTC+3
7:36 amFri, Jun 5
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
Colombia TimeCOT
South America · UTC-5
11:36 pmThu, Jun 4
4p
5p
6p
7p
8p
9p
10p
11p
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p

Offset

The time difference between Arabia Standard Time and Colombia Time is 8 hours.

8 hours

Arabia Standard Time (AST) is ahead of Colombia Time (COT).

AST: UTC+3

COT: UTC-5

Neither Arabia Standard Time nor Colombia Time is currently observing daylight saving time.

When to schedule

Standard business hours (9 AM–5 PM, Mon–Fri) in Arabia Standard Time and Colombia Time don't overlap on the same weekday. Colombia Time is 8 hours behind Arabia Standard Time.

With some flexibility, there’s a workable window outside standard hours:

  • 3 PM–8 PM in Arabia Standard Time (7 AM–12 PM in Colombia Time) — suggest 5:00 PM Arabia Standard Time (9:00 AM Colombia 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

Arabia Standard Time is also known as AST. To call Saudi Arabia, dial +966.

Colombia Time is also known as COT. To call Colombia, dial +57.

Colombia Time is approximately 7,950 miles west of Arabia Standard Time.

Quick reference

Full 24-hour conversion table — tap any time to open it in the converter.

ASTCOTDay
12:00 am4:00 pm-1 day
1:00 am5:00 pm-1 day
2:00 am6:00 pm-1 day
3:00 am7:00 pm-1 day
4:00 am8:00 pm-1 day
5:00 am9:00 pm-1 day
6:00 am10:00 pm-1 day
7:00 am11:00 pm-1 day
8:00 am12:00 amSame day
9:00 am1:00 amSame day
10:00 am2:00 amSame day
11:00 am3:00 amSame day
12:00 pm4:00 amSame day
1:00 pm5:00 amSame day
2:00 pm6:00 amSame day
3:00 pm7:00 amSame day
4:00 pm8:00 amSame day
5:00 pm9:00 amSame day
6:00 pm10:00 amSame day
7:00 pm11:00 amSame day
8:00 pm12:00 pmSame day
9:00 pm1:00 pmSame day
10:00 pm2:00 pmSame day
11:00 pm3:00 pmSame day

Daylight saving time

Neither Arabia Standard Time nor Colombia 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

Arabia Standard Time
Sunrise
5:05 AM
Sunset
6:41 PM
Day length
13h 36m
Colombia Time
Sunrise
5:44 AM
Sunset
6:07 PM
Day length
12h 23m

Cities in these zones

Cities in Arabia Standard Time

Cities in Colombia Time

Browse all cities to see the current local time anywhere.

Airports in these zones

Airports in Arabia Standard Time

  • JED
  • RUH
  • MED
  • DMM

Airports in Colombia Time

  • BOG
  • CLO
  • EOH
  • MDE

Related conversions

Common conversions

What is 9:00 am AST in COT?
9:00 am AST is 1:00 am COT.
What is 12:00 pm AST in COT?
12:00 pm AST is 4:00 am COT.
What is 12:30 pm AST in COT?
12:30 pm AST is 4:30 am COT.
What is 2:00 pm AST in COT?
2:00 pm AST is 6:00 am COT.
What is 5:00 pm AST in COT?
5:00 pm AST is 9:00 am COT.
What is 11:30 pm AST in COT?
11:30 pm AST is 3:30 pm COT.