COT to RET Time Converter

Convert Colombia Time (COT) to Réunion Time (RET). Both time zones are shown live below; current offset between them is 9 hours ahead.

Bogotá · Colombia Time
12:54:13
Sunday, May 24, 2026
GMT-5 · UTC-05:00
Saint-Denis · Réunion Time
21:54:13
Sunday, May 24, 2026
GMT+4 · UTC+04:00

Convert a specific time

From: COT (Bogotá)
To: RET (Saint-Denis)
--:--

Daylight Saving status right now

COT (Colombia Time)
Observes DST
No
RET (Réunion Time)
Observes DST
No

When can COT and RET meet?

00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
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17
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21
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23
COT
RET
Both zones in working hours (9am-5pm)
One zone working
Off-hours
Columns are hours of the day in Bogotá (COT). Each row shows the local working-hours state in that zone for the same moment in time.
No overlap during strict 9-5 working hours; some flexibility needed.
If both sides are willing to extend to 8am-7pm, the available window is 08:00–09:00 COT (17:00–18:00 RET).

Hour-by-hour COT to RET conversion table

COT time (Bogotá)RET time (Saint-Denis)Status
00:00 Sun09:00 SunRET working
01:00 Sun10:00 SunRET working
02:00 Sun11:00 SunRET working
03:00 Sun12:00 SunRET working
04:00 Sun13:00 SunRET working
05:00 Sun14:00 SunRET working
06:00 Sun15:00 SunRET working
07:00 Sun16:00 SunRET working
08:00 Sun17:00 SunOff-hours both sides
09:00 Sun18:00 SunCOT working
10:00 Sun19:00 SunCOT working
11:00 Sun20:00 SunCOT working
12:00 Sun21:00 SunCOT working
13:00 Sun22:00 SunCOT working
14:00 Sun23:00 SunCOT working
15:00 Sun00:00 MonCOT working
16:00 Sun01:00 MonCOT working
17:00 Sun02:00 MonOff-hours both sides
18:00 Sun03:00 MonOff-hours both sides
19:00 Sun04:00 MonOff-hours both sides
20:00 Sun05:00 MonOff-hours both sides
21:00 Sun06:00 MonOff-hours both sides
22:00 Sun07:00 MonOff-hours both sides
23:00 Sun08:00 MonOff-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

Colombia Time (COT)
IANA identifier
America/Bogota
Current UTC offset
UTC-05:00
Current abbreviation
GMT-5
Major cities in this zone
BogotáMedellín
Réunion Time (RET)
IANA identifier
Indian/Reunion
Current UTC offset
UTC+04:00
Current abbreviation
GMT+4
Major cities in this zone
Saint-Denis

Related converters

RET to COT (reverse)COT to ESTCOT to PSTCOT to GMTCOT to UTCCOT to CETEST to RETPST to RETGMT to RETUTC to RETCET to RET
Looking for local time? See time in Bogotá or time in Saint-Denis.

Frequently asked questions

What is the time difference between COT and RET right now?+
RET (Réunion Time) is currently 9 hours ahead COT (Colombia Time). The exact difference can change when one or both zones transition into or out of daylight saving time.
Does COT or RET observe daylight saving time?+
COT: does not observe daylight saving time. RET: does not observe daylight saving time.
When is the best time to schedule a meeting between COT and RET?+
Standard 9-5 hours do not overlap. Extending to 8am-7pm gives a window of 08:00–09:00 COT (17:00–18:00 RET).
What time is it in Saint-Denis when it is 12:00 noon in Bogotá?+
When it is 12:00 Sun in Bogotá (COT), it is 21:00 Sun in Saint-Denis (RET).
Which IANA time zone identifiers are used for COT and RET?+
COT maps to "America/Bogota" in the IANA database. RET maps to "Indian/Reunion". These identifiers are what most software libraries use to convert times accurately, including DST handling.
Is Bogotá ahead of or behind Saint-Denis?+
Whether Bogotá (COT) is ahead of or behind Saint-Denis (RET) depends on the current UTC offsets. Right now RET is 9 hours ahead COT. The live converter and side-by-side clocks above always reflect the current direction.
What are the current UTC offsets for COT and RET?+
COT is UTC-05:00 (GMT-5) and RET is UTC+04:00 (GMT+4). 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 COT and RET?+
Not during a strict 9am-5pm window. If both sides flex to 8am-7pm, the available meeting window between COT and RET is 08:00–09:00 COT.