Does it handle Daylight Saving Time?

Yes, the tool automatically adjusts for Daylight Saving Time based on the specific date you select, ensuring accurate conversions year-round.

Can I add multiple cities?

Yes, you can add as many cities as you need to the dashboard to compare times across your entire global network simultaneously.

COT to Johannesburg

+7h

COT

COTSOURCE

UTC-05:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Johannesburg

SAST

South Africa · UTC+02:00

HH07

MM00

19:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

COT

Johannesburg

12:00 AM

7:00 AM

2:00 AM

9:00 AM

4:00 AM

11:00 AM

6:00 AM

1:00 PM

8:00 AM

3:00 PM

10:00 AM

5:00 PM

12:00 PM

7:00 PM

2:00 PM

9:00 PM

4:00 PM

11:00 PM

6:00 PM

1:00 AM+1

8:00 PM

3:00 AM+1

10:00 PM

5:00 AM+1

Green rows indicate typical business hours (9 AM - 5 PM)

COT and SAST on the World Map

The map below highlights the COT (Colombia Time) and SAST (South Africa Standard Time) timezone regions across the globe.

COT Zone

→

SAST Zone

Explore all world timezones interactively →

COT – Colombia Time

UTC-05:00

Colombia Time (COT) is the standard time for Colombia, 5 hours behind UTC.

Countries in COT

Colombia

Major Cities in COT

BogotáMedellínCaliBarranquillaCartagena

Key Facts about COT

•Colombia does not observe daylight saving time.
•COT is the same offset as EST (UTC-05:00).
•Bogotá sits at 2,640m elevation, making it one of the highest capital cities.

Daylight Saving:No – UTC-05:00 year-round

Learn more about COT on Wikipedia

SAST – South Africa Standard Time

UTC+02:00

South Africa Standard Time (SAST) is the time zone for South Africa and neighboring countries, 2 hours ahead of UTC.

Countries in SAST

South AfricaLesothoEswatini

Major Cities in SAST

JohannesburgCape TownDurbanPretoriaPort Elizabeth

Key Facts about SAST

•South Africa does not observe daylight saving time.
•SAST is the same offset as EET and Israel Standard Time.
•The Johannesburg Stock Exchange (JSE) is Africa's largest.

Daylight Saving:No – UTC+02:00 year-round

Learn more about SAST on Wikipedia

About Johannesburg

Wikipedia

Johannesburg operates on South Africa Time (SAST), UTC+2. As Africa's largest economy hub and home to the JSE, Johannesburg drives African financial markets.

Population:5.8 million

Metro:10.5 million

Business Hours:8:00 AM - 5:00 PM SAST

Currency:ZAR (R)

Stock Exchange:JSE (Johannesburg Stock Exchange)

Key Landmarks

Apartheid MuseumConstitution HillGold Reef CityMaboneng PrecinctSoweto

Did You Know?

Johannesburg is built on the world's largest gold deposit.

Learn more about SAST timezone →

Understanding the +7h Gap: COT vs Johannesburg

COT runs on Colombia Time (COT) at UTC-05:00. Johannesburg runs on South Africa Standard Time (SAST) at UTC+02:00. That puts COT 7 hours ahead of Johannesburg — a difference of +7h at the current offsets.

In practice, when it is 9:00 AM in COT it is 4:00 PM in Johannesburg. Midnight in COT is 7:00 AM in Johannesburg. Neither zone observes daylight saving time, so the offset between them stays constant all year.

COT to Johannesburg time conversion table

COT (COT)	Johannesburg (SAST)	Day
12:00 AM	7:00 AM	same day
6:00 AM	1:00 PM	same day
7:00 AM	2:00 PM	same day
8:00 AM	3:00 PM	same day
9:00 AM	4:00 PM	same day
12:00 PM	7:00 PM	same day
3:00 PM	10:00 PM	same day
5:00 PM	12:00 AM	next day
6:00 PM	1:00 AM	next day
9:00 PM	4:00 AM	next day

Why people convert COT to Johannesburg time

Scheduling a call from COT to Johannesburg: a 10:00 AM start in COT lands at 5:00 PM in Johannesburg, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both COT and Johannesburg are inside the 9-to-5 working day between 9:00 AM and 10:00 AM COT time (4:00 PM–5:00 PM SAST). That is roughly 1 hours of usable overlap.
Keeping family and friends in sync: knowing that 8:00 PM in COT is 3:00 AM in Johannesburg makes it easy to avoid calling at 3 AM.

Always state the zone abbreviation, not just the hour. "3:00 PM COT" is unambiguous; "3 PM" across a +7h gap is not.
Block 9:00 AM–10:00 AM COT as the recurring meeting window if you work primarily from COT and need Johannesburg colleagues present.

About COT (Colombia Time)

Colombia Time (COT) is used throughout Colombia. Colombia does not observe daylight saving time. COT shares the same offset as EST (UTC-05:00). Bogotá, the capital, is one of the largest cities in South America.

About SAST (South Africa Standard Time)

South Africa Standard Time (SAST) is used in South Africa, Lesotho, and Eswatini. SAST does not observe daylight saving time. Johannesburg and Cape Town are major economic hubs in Africa.

Best time to call between COT and Johannesburg

Both COT and Johannesburg sit inside the 9 AM – 5 PM working day between 9:00 AM–10:00 AM COT, which is 4:00 PM–5:00 PM SAST. That gives roughly 1 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

COT and Johannesburg overlap for only 60 minutes (9:00 AM–10:00 AM COT), so meetings have to be booked precisely.

COT is 7 hours ahead of Johannesburg (COT UTC-05:00 → SAST UTC+02:00). The shared working window is 9:00 AM–10:00 AM COT. Remember to re-check around daylight-saving transitions.

Learn More About Time

Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:

⏳

History of Timekeeping

From sundials to atomic clocks - 5000 years of measuring time

🌍

How Time Zones Work

UTC, offsets, and why zones don't follow straight lines

☀️

Daylight Saving Time

DST dates, which countries observe it, and the ongoing debate

Frequently Asked Questions

What is the time difference between COT and Johannesburg?

COT (COT, UTC-05:00) is 7 hours ahead of Johannesburg (SAST, UTC+02:00). The gap is currently +7h.

How do I convert COT time to Johannesburg time?

Add +7h to COT local time. For example, 9:00 AM in COT is 4:00 PM in Johannesburg.

What time is it in Johannesburg right now?

Johannesburg uses SAST at UTC+02:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +7h offset from COT.

What is the best time to call Johannesburg from COT?

Call between 9:00 AM and 10:00 AM COT — that maps to 4:00 PM–5:00 PM SAST and keeps both parties inside the working day.

Which is ahead, COT or Johannesburg?

COT is 7 hours ahead of Johannesburg. When it is 12:00 PM in COT it is 7:00 PM in Johannesburg.

Do COT and Johannesburg use different time zones?

COT uses COT at UTC-05:00, while Johannesburg (South Africa) uses SAST at UTC+02:00. The IANA identifiers are America/Bogota and Africa/Johannesburg.

Does daylight saving time affect the COT–Johannesburg difference?

Neither zone observes daylight saving time, so the +7h offset between COT and Johannesburg is fixed all year.

Which other cities share COT's time zone?

COT also covers Bogotá, Medellín, Cali, Barranquilla, Cartagena.

Which countries use COT, COT's zone?

COT is used in Colombia.

Is there a day difference between COT and Johannesburg?

Not normally. The +7h gap only pushes the date over for late-evening times.

What is the time difference between COT and Johannesburg?

Johannesburg is +7h from COT.

What timezone is COT in?

COT operates on its local timezone.

What timezone is Johannesburg in?

Johannesburg operates on South Africa Time (SAST), UTC+2. As Africa's largest economy hub and home to the JSE, Johannesburg drives African financial markets.