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).

Kathmandu to Chicago

-10h 45m

Kathmandu

NPTSOURCE

Nepal · UTC+05:45

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Chicago

CDT

USA · UTC-05:00☀ DST active

HH01

MM15

01:15 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Kathmandu

Chicago

12:00 AM

1:15 PM-1

2:00 AM

3:15 PM-1

4:00 AM

5:15 PM-1

6:00 AM

7:15 PM-1

8:00 AM

9:15 PM-1

10:00 AM

11:15 PM-1

12:00 PM

1:15 AM

2:00 PM

3:15 AM

4:00 PM

5:15 AM

6:00 PM

7:15 AM

8:00 PM

9:15 AM

10:00 PM

11:15 AM

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

NPT and CDT on the World Map

The map below highlights the NPT (Nepal Time) and CDT (Central Standard Time) timezone regions across the globe.

NPT Zone

→

CDT Zone

Explore all world timezones interactively →

NPT – Nepal Time

UTC+05:45

Nepal Time (NPT, UTC+05:45) is the time zone for Nepal — one of the few offsets in the world set on a 45-minute increment.

Countries in NPT

Nepal

Major Cities in NPT

KathmanduPokharaLalitpurBharatpurBiratnagar

Key Facts about NPT

•Nepal Time is UTC+05:45 — a 45-minute offset, not a whole or half hour.
•The 45-minute offset was adopted in 1986 to match Kathmandu's solar time.
•Nepal does not observe daylight saving time.
•Nepal is 15 minutes ahead of India, despite sharing a long open border.

Daylight Saving:No – UTC+05:45 year-round

Learn more about NPT on Wikipedia

CST – Central Standard Time

UTC-06:00

Central Standard Time (CST) is the time zone for the central United States, Canada, and Mexico, 6 hours behind UTC.

Countries in CST

United States (Central)Canada (Manitoba, Saskatchewan)MexicoGuatemalaHondurasEl SalvadorCosta RicaNicaraguaBelize

Major Cities in CST

ChicagoHoustonDallasSan AntonioMexico CityAustinWinnipegMemphisMilwaukeeNashvilleKansas CityNew OrleansMinneapolisGuatemala City

Key Facts about CST

•CST covers 20 US states fully or partially.
•Chicago and Houston are the two largest cities in the Central Time Zone.
•Mexico City, one of the world's most populous cities, operates on CST.
•CST is 1 hour behind EST and 2 hours ahead of PST.

Daylight Saving:Yes – switches to CDT

Learn more about CST on Wikipedia

About Kathmandu

Wikipedia

Kathmandu operates on Nepal Time (NPT), one of the world's unique UTC+5:45 timezones. This 15-minute offset from India makes Nepal time distinctive for global coordination.

Population:1.4 million

Metro:3.0 million

Business Hours:10:00 AM - 5:00 PM NPT

Currency:NPR (रू)

Stock Exchange:NEPSE (Nepal Stock Exchange)

Key Landmarks

Boudhanath StupaSwayambhunathDurbar SquarePashupatinath TempleGarden of Dreams

Did You Know?

Nepal Time (NPT) is one of only three timezones offset by 45 minutes (UTC+5:45).

Learn more about NPT timezone →

About Chicago

Wikipedia

Chicago operates on Central Time (CST/CDT), 1 hour behind New York. Home to CME and CBOE, Chicago is a global center for derivatives trading.

Population:2.7 million

Metro:9.5 million

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

Currency:USD ($)

Stock Exchange:CME (Chicago Mercantile Exchange), CBOE

Key Landmarks

Willis TowerMillennium ParkCloud Gate (The Bean)Navy PierArt Institute of Chicago

Did You Know?

The Chicago Board of Trade is the world's oldest futures and options exchange.

Learn more about CDT timezone →

Kathmandu to Chicago Time Difference – Complete Guide

Kathmandu runs on Nepal Time (NPT) at UTC+05:45. Chicago runs on Central Daylight Time (CDT) at UTC-05:00, also currently on daylight saving time. That puts Kathmandu 10 hours 45 minutes behind Chicago — a difference of -10h 45m at the current offsets.

In practice, when it is 9:00 AM in Kathmandu it is 10:15 PM in Chicago on the previous day. Midnight in Kathmandu is 1:15 PM in Chicago.Chicago observes daylight saving time while Kathmandu does not, so the gap narrows or widens by an hour part of the year.

Kathmandu to Chicago time conversion table

Kathmandu (NPT)	Chicago (CDT)	Day
12:00 AM	1:15 PM	previous day
6:00 AM	7:15 PM	previous day
7:00 AM	8:15 PM	previous day
8:00 AM	9:15 PM	previous day
9:00 AM	10:15 PM	previous day
12:00 PM	1:15 AM	same day
3:00 PM	4:15 AM	same day
5:00 PM	6:15 AM	same day
6:00 PM	7:15 AM	same day
9:00 PM	10:15 AM	same day

Why people convert Kathmandu to Chicago time

Scheduling a call from Kathmandu to Chicago: a 10:00 AM start in Kathmandu lands at 11:15 PM in Chicago the previous day, so you can confirm the slot without doing the arithmetic yourself.
Handling a -10h 45m gap: Kathmandu and Chicago 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 Chicago is 10:15 PM in Kathmandu.
Coordinating a Kathmandu-based team with Chicago contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.

Always state the zone abbreviation, not just the hour. "3:00 PM NPT" is unambiguous; "3 PM" across a -10h 45m gap is not.
With a -10h 45m gap there is no shared 9-to-5 window, so alternate the early start: one week Kathmandu takes the early slot, the next week Chicago does.
Chicago: Clocks fall back on Sun, Nov 1, 2026. Any meeting series spanning that date will shift by an hour in local time.

About NPT (Nepal Time)

Nepal Time (NPT) runs at UTC+05:45, one of only a handful of time zones worldwide that are not a whole or half hour from UTC. Nepal set its offset to 5 hours 45 minutes ahead of UTC in 1986 to mark the country's position between the 75°E and 90°E meridians; Kathmandu's solar time sits just over 5 hours 41 minutes ahead of Greenwich, so the 45-minute offset tracks the sun more closely than either 5:30 or 6:00 would. Nepal does not observe daylight saving time, so NPT is fixed all year. The offset makes Nepal 15 minutes ahead of India Standard Time (UTC+05:30) and 2 hours 15 minutes ahead of Dubai (UTC+04:00).

About CST (Central Standard Time)

Central Standard Time (CST) covers the central region of North America. It is the second most populous time zone in the US, including major cities like Chicago, Houston, and Dallas. CST is also used in Mexico City and much of Central America including Guatemala, Honduras, El Salvador, and Costa Rica. During summer, most of the US and Canada switch to Central Daylight Time (CDT, UTC-05:00), while Mexico and Central American countries generally remain on CST.

Best time to call between Kathmandu and Chicago

With a -10h 45m offset there is no overlap inside a normal 9 AM – 5 PM day. Chicago opens at 9:00 AM CDT, which is 10:15 PM in Kathmandu, so real-time calls need an early-morning or late-evening slot on one side.

Business hours overlap

Kathmandu and Chicago have no shared working hours because of the -10h 45m gap. Teams need to alternate early starts or rely on asynchronous handovers.

Kathmandu is 10 hours 45 minutes behind Chicago (NPT UTC+05:45 → CDT UTC-05:00). 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

Kathmandu

Does not observe DST

Chicago

☀ Currently in DST

Standard: UTC-06:00 · DST: UTC-05:00

Clocks fall back on Sun, Nov 1, 2026

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 Kathmandu and Chicago?

Kathmandu (NPT, UTC+05:45) is 10 hours 45 minutes behind Chicago (CDT, UTC-05:00). The gap is currently -10h 45m.

How do I convert Kathmandu time to Chicago time?

Add -10h 45m to Kathmandu local time. For example, 9:00 AM in Kathmandu is 10:15 PM in Chicago (previous day).

What time is it in Chicago right now?

Chicago uses CDT at UTC-05:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -10h 45m offset from Kathmandu.

What is the best time to call Chicago from Kathmandu?

There is no shared working-hours window because of the -10h 45m gap. The closest option is 1:00 PM in Kathmandu, which is 2:15 AM in Chicago.

Which is behind, Kathmandu or Chicago?

Kathmandu is 10 hours 45 minutes behind Chicago. When it is 12:00 PM in Kathmandu it is 1:15 AM in Chicago.

Do Kathmandu and Chicago use different time zones?

Kathmandu (Nepal) uses NPT at UTC+05:45, while Chicago (USA) uses CDT at UTC-05:00. The IANA identifiers are Asia/Kathmandu and America/Chicago.

Does daylight saving time affect the Kathmandu–Chicago difference?

Yes at the moment: Chicago is on daylight saving time and Kathmandu is not, so the -10h 45m gap shifts by an hour when exactly one of them changes clocks.

Which other cities share Kathmandu's time zone?

NPT also covers Kathmandu, Pokhara, Lalitpur, Bharatpur, Biratnagar.

Which countries use NPT, Kathmandu's zone?

NPT is used in Nepal.

Is there a day difference between Kathmandu and Chicago?

Not normally. The -10h 45m gap only pushes the date over the previous day.

What is the time difference between Kathmandu and Chicago?

Chicago is -10h 45m from Kathmandu.

What timezone is Kathmandu in?

Kathmandu operates on Nepal Time (NPT), one of the world's unique UTC+5:45 timezones. This 15-minute offset from India makes Nepal time distinctive for global coordination.

What timezone is Chicago in?

Chicago operates on Central Time (CST/CDT), 1 hour behind New York. Home to CME and CBOE, Chicago is a global center for derivatives trading.

What are the business hours in Kathmandu?

Standard business hours in Kathmandu are 10:00 AM - 5:00 PM NPT.

What are the business hours in Chicago?

Standard business hours in Chicago are 8:00 AM - 5:00 PM CST.

What is the best time to schedule a call between Kathmandu and Chicago?

The best overlap for a call is when both cities are in business hours. Kathmandu works 10:00 AM - 5:00 PM NPT and Chicago works 8:00 AM - 5:00 PM CST (-10h 45m difference). Try scheduling during the overlapping window for maximum convenience.

What currencies are used in Kathmandu and Chicago?

Kathmandu uses NPR (रू) while Chicago uses USD ($). Check current exchange rates when planning travel or business between these cities.

How do Kathmandu and Chicago compare in size?

Kathmandu has a population of approximately 1.4 million (metro: 3.0 million), while Chicago has approximately 2.7 million (metro: 9.5 million).

What are the major landmarks in Kathmandu and Chicago?

Kathmandu is known for Boudhanath Stupa, Swayambhunath, Durbar Square. Chicago is famous for Willis Tower, Millennium Park, Cloud Gate (The Bean).

Do Kathmandu and Chicago have stock exchanges?

Yes. Kathmandu has the NEPSE (Nepal Stock Exchange) and Chicago has the CME (Chicago Mercantile Exchange), CBOE. The -10h 45m time difference affects trading hour overlaps between these exchanges.