Does it account for Daylight Saving Time?

Yes, our converter uses the IANA timezone database, which includes all current DST rules for every timezone in the world.

UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks. All timezones are defined as offsets from UTC.

Can I compare multiple timezones at once?

Yes, you can add multiple cities or timezones and see the equivalent times side by side.

How many timezones are there in the world?

There are 38 distinct UTC offsets in use, ranging from UTC-12 to UTC+14. This includes half-hour (UTC+5:30 India, UTC+9:30 Australia) and 45-minute offsets (UTC+5:45 Nepal, UTC+8:45 Australia).

What is the International Date Line?

The International Date Line (IDL) runs roughly along the 180° meridian in the Pacific Ocean. When you cross it westward, you gain a day; crossing eastward, you lose a day.

Why do some timezones have 30 or 45 minute offsets?

Countries chose offsets that best matched their solar noon. India uses UTC+5:30 and Nepal uses UTC+5:45 because standard hourly offsets didn't align well with their geography.

Which country has the most timezones?

France has the most (12 timezones) due to overseas territories. Russia spans 11 timezones. The US has 6 (including Hawaii and Alaska).

COT to NZST

+17h

COT

COTSOURCE

UTC-05:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

NZST

UTC+13:00☀ DST active

HH05

MM00

(next day)05:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

COT

NZST

12:00 AM

6:00 PM

2:00 AM

8:00 PM

4:00 AM

10:00 PM

6:00 AM

12:00 AM+1

8:00 AM

2:00 AM+1

10:00 AM

4:00 AM+1

12:00 PM

6:00 AM+1

2:00 PM

8:00 AM+1

4:00 PM

10:00 AM+1

6:00 PM

12:00 PM+1

8:00 PM

2:00 PM+1

10:00 PM

4:00 PM+1

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

COT and NZST on the World Map

The map below highlights the COT (Colombia Time) and NZST (New Zealand Standard Time) timezone regions across the globe.

COT Zone

→

NZST 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

NZST – New Zealand Standard Time

UTC+12:00

New Zealand Standard Time (NZST) is the time zone for New Zealand, 12 hours ahead of UTC.

Countries in NZST

New Zealand

Major Cities in NZST

AucklandWellingtonChristchurchHamiltonDunedin

Key Facts about NZST

•New Zealand is among the first major countries to see a new day.
•NZST is 17 hours ahead of EST.
•New Zealand observes DST from September to April (Southern Hemisphere summer).

Daylight Saving:Yes – switches to NZDT

Learn more about NZST on Wikipedia

COT to NZST Time Difference – Complete Guide

COT runs on Colombia Time (COT) at UTC-05:00. NZST runs on New Zealand Standard Time (NZST) at UTC+12:00. That puts COT 17 hours ahead of NZST — a difference of +17h at the current offsets.

In practice, when it is 9:00 AM in COT it is 2:00 AM in NZST on the next day. Midnight in COT is 5:00 PM in NZST. Neither zone observes daylight saving time, so the offset between them stays constant all year.

COT to NZST time conversion table

COT (COT)	NZST (NZST)	Day
12:00 AM	5:00 PM	same day
6:00 AM	11:00 PM	same day
7:00 AM	12:00 AM	next day
8:00 AM	1:00 AM	next day
9:00 AM	2:00 AM	next day
12:00 PM	5:00 AM	next day
3:00 PM	8:00 AM	next day
5:00 PM	10:00 AM	next day
6:00 PM	11:00 AM	next day
9:00 PM	2:00 PM	next day

Why people convert COT to NZST time

Scheduling a call from COT to NZST: a 10:00 AM start in COT lands at 3:00 AM in NZST the next day, so you can confirm the slot without doing the arithmetic yourself.
Handling a +17h gap: COT and NZST have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in NZST is 2:00 AM in COT.
Booking travel or deliveries: tracking NZST local time against COT keeps pickup windows and arrival estimates honest across the +17h offset.

Always state the zone abbreviation, not just the hour. "3:00 PM COT" is unambiguous; "3 PM" across a +17h gap is not.
With a +17h gap there is no shared 9-to-5 window, so alternate the early start: one week COT takes the early slot, the next week NZST does.

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 NZST (New Zealand Standard Time)

New Zealand Standard Time (NZST) is the standard time zone for New Zealand and its dependencies. New Zealand is among the first countries to see a new calendar day. During summer (September to April), clocks advance to New Zealand Daylight Time (NZDT, UTC+13:00).

Best time to call between COT and NZST

With a +17h offset there is no overlap inside a normal 9 AM – 5 PM day. NZST opens at 9:00 AM NZST, which is 2:00 AM in COT, so real-time calls need an early-morning or late-evening slot on one side.

Business hours overlap

COT and NZST have no shared working hours because of the +17h gap. Teams need to alternate early starts or rely on asynchronous handovers.

COT is 17 hours ahead of NZST (COT UTC-05:00 → NZST UTC+12:00). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.

🕐 Daylight Saving Time Info

COT

Does not observe DST

NZST

☀ Currently in DST

Standard: UTC+12:00 · DST: UTC+13:00

Clocks fall back on Sat, Apr 3, 2027

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 NZST?

COT (COT, UTC-05:00) is 17 hours ahead of NZST (NZST, UTC+12:00). The gap is currently +17h.

How do I convert COT time to NZST time?

Add +17h to COT local time. For example, 9:00 AM in COT is 2:00 AM in NZST (next day).

What time is it in NZST right now?

NZST uses NZST at UTC+12:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +17h offset from COT.