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).

WAT to MDT

-7h

WAT

WATSOURCE

UTC+01:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

MDT

UTC-06:00☀ DST active

HH05

MM00

05:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

WAT

MDT

12:00 AM

5:00 PM-1

2:00 AM

7:00 PM-1

4:00 AM

9:00 PM-1

6:00 AM

11:00 PM-1

8:00 AM

1:00 AM

10:00 AM

3:00 AM

12:00 PM

5:00 AM

2:00 PM

7:00 AM

4:00 PM

9:00 AM

6:00 PM

11:00 AM

8:00 PM

1:00 PM

10:00 PM

3:00 PM

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

WAT and MDT on the World Map

The map below highlights the WAT (West Africa Time) and MDT (Mountain Daylight Time) timezone regions across the globe.

WAT Zone

→

MDT Zone

Explore all world timezones interactively →

WAT – West Africa Time

UTC+01:00

West Africa Time (WAT) is the time zone for West and Central Africa, 1 hour ahead of UTC.

Countries in WAT

NigeriaCameroonChadCongoAngolaNigerGabonEquatorial Guinea

Major Cities in WAT

LagosAbujaDoualaYaoundéLuandaKinshasaBrazzaville

Key Facts about WAT

•Lagos, Nigeria is the most populous city in Africa.
•WAT is the same offset as CET (UTC+01:00).
•Nigeria does not observe daylight saving time.

Daylight Saving:No – UTC+01:00 year-round

Learn more about WAT on Wikipedia

MDT – Mountain Daylight Time

UTC-06:00

Mountain Daylight Time (MDT) is the daylight saving offset in the Mountain Time Zone, 6 hours behind UTC.

Countries in MDT

United States (Mountain)Canada (Alberta)

Major Cities in MDT

DenverCalgaryEdmontonSalt Lake CityBoise

Key Facts about MDT

•MDT shares the same offset as CST (UTC-06:00).
•Arizona does not switch to MDT, remaining on MST.

Daylight Saving:Yes – switches to MST

Learn more about MDT on Wikipedia

WAT to MDT Time Difference – Complete Guide

WAT runs on West Africa Time (WAT) at UTC+01:00. MDT runs on Mountain Daylight Time (MDT) at UTC-06:00. That puts WAT 7 hours behind MDT — a difference of -7h at the current offsets.

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

WAT to MDT time conversion table

WAT (WAT)	MDT (MDT)	Day
12:00 AM	5:00 PM	previous day
6:00 AM	11:00 PM	previous day
7:00 AM	12:00 AM	same day
8:00 AM	1:00 AM	same day
9:00 AM	2:00 AM	same day
12:00 PM	5:00 AM	same day
3:00 PM	8:00 AM	same day
5:00 PM	10:00 AM	same day
6:00 PM	11:00 AM	same day
9:00 PM	2:00 PM	same day

Why people convert WAT to MDT time

Scheduling a call from WAT to MDT: a 10:00 AM start in WAT lands at 3:00 AM in MDT, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both WAT and MDT are inside the 9-to-5 working day between 4:00 PM and 5:00 PM WAT time (9:00 AM–10:00 AM MDT). That is roughly 1 hours of usable overlap.
Booking travel or deliveries: tracking MDT local time against WAT keeps pickup windows and arrival estimates honest across the -7h offset.

Always state the zone abbreviation, not just the hour. "3:00 PM WAT" is unambiguous; "3 PM" across a -7h gap is not.
Block 4:00 PM–5:00 PM WAT as the recurring meeting window if you work primarily from WAT and need MDT colleagues present.

About WAT (West Africa Time)

West Africa Time (WAT) is used across much of West and Central Africa, including Nigeria, the most populous country in Africa. WAT does not observe daylight saving time and shares the same offset as Central European Time (CET).

About MDT (Mountain Daylight Time)

Mountain Daylight Time (MDT) is observed during summer months in the Mountain Time Zone, except in Arizona which stays on MST year-round. MDT aligns with Central Standard Time (CST) at UTC-06:00.

Best time to call between WAT and MDT

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

Business hours overlap

WAT and MDT overlap for only 60 minutes (4:00 PM–5:00 PM WAT), so meetings have to be booked precisely.

WAT is 7 hours behind MDT (WAT UTC+01:00 → MDT UTC-06:00). The shared working window is 4:00 PM–5:00 PM WAT. Remember to re-check around daylight-saving transitions.