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.

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).

CDT to UTC

Q: What is UTC?

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

+5h

CDT

CDTSOURCE

UTC-05:00☀ DST active

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

UTC

UTC+00:00

HH05

MM00

17:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

CDT

UTC

12:00 AM

5:00 AM

2:00 AM

7:00 AM

4:00 AM

9:00 AM

6:00 AM

11:00 AM

8:00 AM

1:00 PM

10:00 AM

3:00 PM

12:00 PM

5:00 PM

2:00 PM

7:00 PM

4:00 PM

9:00 PM

6:00 PM

11:00 PM

8:00 PM

1:00 AM+1

10:00 PM

3:00 AM+1

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

CDT and UTC on the World Map

The map below highlights the CDT (Central Daylight Time) and UTC (Coordinated Universal Time) timezone regions across the globe.

CDT Zone

→

UTC Zone

Explore all world timezones interactively →

CDT – Central Daylight Time

UTC-05:00

Central Daylight Time (CDT) is the daylight saving offset in the Central Time Zone, 5 hours behind UTC.

Countries in CDT

United States (Central)Canada (Manitoba)

Major Cities in CDT

ChicagoHoustonDallasAustinWinnipegNashville

Key Facts about CDT

•CDT is the same offset as EST (UTC-05:00), which can cause confusion.
•CDT runs from the second Sunday in March to the first Sunday in November.

Daylight Saving:Yes – switches to CST

Learn more about CDT on Wikipedia

UTC – Coordinated Universal Time

UTC+00:00

Coordinated Universal Time (UTC) is the world's primary time standard, used as the basis for civil time worldwide.

Countries in UTC

Used worldwide as referenceSame zone as: UK, Ireland, Iceland, Portugal, Ghana

Major Cities in UTC

LondonDublinReykjavikAccraLisbonDakar

Key Facts about UTC

•UTC is the basis for all civil time zones worldwide.
•The abbreviation 'UTC' is a compromise between English (CUT) and French (TUC).
•UTC is based on atomic clocks and is accurate to within a nanosecond per day.
•Servers and databases worldwide store timestamps in UTC to avoid timezone confusion.
•Leap seconds are occasionally added to UTC to keep it aligned with Earth's rotation.

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

Learn more about UTC on Wikipedia

CDT to UTC Time Difference – Complete Guide

CDT runs on Central Daylight Time (CDT) at UTC-05:00. UTC runs on Coordinated Universal Time (UTC) at UTC+00:00. That puts CDT 5 hours ahead of UTC — a difference of +5h at the current offsets.

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

CDT to UTC time conversion table

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

Why people convert CDT to UTC time

Scheduling a call from CDT to UTC: a 10:00 AM start in CDT lands at 3:00 PM in UTC, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both CDT and UTC are inside the 9-to-5 working day between 9:00 AM and 12:00 PM CDT time (2:00 PM–5:00 PM UTC). That is roughly 3 hours of usable overlap.
Booking travel or deliveries: tracking UTC local time against CDT keeps pickup windows and arrival estimates honest across the +5h offset.

Always state the zone abbreviation, not just the hour. "3:00 PM CDT" is unambiguous; "3 PM" across a +5h gap is not.
Block 9:00 AM–12:00 PM CDT as the recurring meeting window if you work primarily from CDT and need UTC colleagues present.

About CDT (Central Daylight Time)

Central Daylight Time (CDT) is observed during summer months in the US and Canadian portions of the Central Time Zone. Clocks are moved forward by one hour, aligning with Eastern Standard Time (EST). Most of Mexico and Central America do not observe CDT, staying on CST year-round.

About UTC (Coordinated Universal Time)

Coordinated Universal Time (UTC) is the primary time standard by which the world regulates clocks and time. It is effectively the successor to GMT and is based on International Atomic Time with leap seconds added to keep it synchronized with Earth's rotation. UTC is used in aviation, computing, navigation, weather forecasting, and the International Space Station. Most programming languages and databases store timestamps in UTC.

Best time to call between CDT and UTC

Both CDT and UTC sit inside the 9 AM – 5 PM working day between 9:00 AM–12:00 PM CDT, which is 2:00 PM–5:00 PM UTC. That gives roughly 3 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

CDT and UTC overlap for about 3 hours during the working day — enough for meetings if you avoid the edges of the window.

CDT is 5 hours ahead of UTC (CDT UTC-05:00 → UTC UTC+00:00). The shared working window is 9:00 AM–12:00 PM CDT. Remember to re-check around daylight-saving transitions.