CHAST to COT Time Converter

Convert Chatham Standard Time (CHAST) to Colombia Time (COT). Both time zones are shown live below; current offset between them is 17h 45m behind.

Chatham Islands · Chatham Standard Time
01:47:00
Thursday, May 14, 2026
GMT+12:45 · UTC+12:45
Bogotá · Colombia Time
08:02:00
Wednesday, May 13, 2026
GMT-5 · UTC-05:00

Convert a specific time

From: CHAST (Chatham Islands)
To: COT (Bogotá)
--:--

Daylight Saving status right now

CHAST (Chatham Standard Time)
Observes DST
Yes
In DST right now
No
Next spring forward
2026-09-27
Offset shift
UTC+12:45 → UTC+13:45
COT (Colombia Time)
Observes DST
No

Heads up: CHAST observes DST while COT does not. The 17.75-hour difference shown above will shift by one hour when CHAST starts or ends DST.

When can CHAST and COT meet?

00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
CHAST
COT
Both zones in working hours (9am-5pm)
One zone working
Off-hours
Columns are hours of the day in Chatham Islands (CHAST). Each row shows the local working-hours state in that zone for the same moment in time.
2 hours of overlap during standard 9am-5pm working hours.
Best meeting window: 09:00–10:00 CHAST (15:15–16:15 COT).

Hour-by-hour CHAST to COT conversion table

CHAST time (Chatham Islands)COT time (Bogotá)Status
00:00 Thu06:15 WedOff-hours both sides
01:00 Thu07:15 WedOff-hours both sides
02:00 Thu08:15 WedOff-hours both sides
03:00 Thu09:15 WedCOT working
04:00 Thu10:15 WedCOT working
05:00 Thu11:15 WedCOT working
06:00 Thu12:15 WedCOT working
07:00 Thu13:15 WedCOT working
08:00 Thu14:15 WedCOT working
09:00 Thu15:15 WedBoth at work
10:00 Thu16:15 WedBoth at work
11:00 Thu17:15 WedCHAST working
12:00 Thu18:15 WedCHAST working
13:00 Thu19:15 WedCHAST working
14:00 Thu20:15 WedCHAST working
15:00 Thu21:15 WedCHAST working
16:00 Thu22:15 WedCHAST working
17:00 Thu23:15 WedOff-hours both sides
18:00 Thu00:15 ThuOff-hours both sides
19:00 Thu01:15 ThuOff-hours both sides
20:00 Thu02:15 ThuOff-hours both sides
21:00 Thu03:15 ThuOff-hours both sides
22:00 Thu04:15 ThuOff-hours both sides
23:00 Thu05:15 ThuOff-hours both sides

Times computed for today in each zone using the IANA time zone database. The conversion accounts for daylight saving time wherever applicable.

About these time zones

Chatham Standard Time (CHAST)
IANA identifier
Pacific/Chatham
Current UTC offset
UTC+12:45
Current abbreviation
GMT+12:45
Major cities in this zone
Chatham Islands
Colombia Time (COT)
IANA identifier
America/Bogota
Current UTC offset
UTC-05:00
Current abbreviation
GMT-5
Major cities in this zone
BogotáMedellín

Related converters

COT to CHAST (reverse)CHAST to ESTCHAST to PSTCHAST to GMTCHAST to UTCCHAST to CETEST to COTPST to COTGMT to COTUTC to COTCET to COT
Looking for local time? See time in Chatham Islands or time in Bogotá.

Frequently asked questions

What is the time difference between CHAST and COT right now?+
COT (Colombia Time) is currently 17h 45m behind CHAST (Chatham Standard Time). The exact difference can change when one or both zones transition into or out of daylight saving time.
Does CHAST or COT observe daylight saving time?+
CHAST: observes daylight saving time. COT: does not observe daylight saving time.
When is the best time to schedule a meeting between CHAST and COT?+
The strongest overlap is 09:00–10:00 CHAST (15:15–16:15 COT), giving 2 hours when both sides are within standard 9am-5pm working hours.
What time is it in Bogotá when it is 12:00 noon in Chatham Islands?+
When it is 12:00 Thu in Chatham Islands (CHAST), it is 18:15 Wed in Bogotá (COT).
Which IANA time zone identifiers are used for CHAST and COT?+
CHAST maps to "Pacific/Chatham" in the IANA database. COT maps to "America/Bogota". These identifiers are what most software libraries use to convert times accurately, including DST handling.
Is Chatham Islands ahead of or behind Bogotá?+
Whether Chatham Islands (CHAST) is ahead of or behind Bogotá (COT) depends on the current UTC offsets. Right now COT is 17h 45m behind CHAST. The live converter and side-by-side clocks above always reflect the current direction.
What are the current UTC offsets for CHAST and COT?+
CHAST is UTC+12:45 (GMT+12:45) and COT is UTC-05:00 (GMT-5). Both offsets shift by one hour when the corresponding region enters or exits daylight saving time, so the live values on this page are the source of truth.
Can I schedule meetings during business hours for both CHAST and COT?+
Yes. There are 2 hours of overlap during standard 9am-5pm working hours, with the strongest window at 09:00–10:00 CHAST.