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).

CST to NPT

+11h 45m

CST

CSTSOURCE

UTC-05:00☀ DST active

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

NPT

UTC+05:45

HH11

MM45

23:45 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

CST

NPT

12:00 AM

10:45 AM

2:00 AM

12:45 PM

4:00 AM

2:45 PM

6:00 AM

4:45 PM

8:00 AM

6:45 PM

10:00 AM

8:45 PM

12:00 PM

10:45 PM

2:00 PM

12:45 AM+1

4:00 PM

2:45 AM+1

6:00 PM

4:45 AM+1

8:00 PM

6:45 AM+1

10:00 PM

8:45 AM+1

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

CST and NPT on the World Map

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

CST Zone

→

NPT Zone

Explore all world timezones interactively →

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

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

Understanding the +11h 45m Gap: CST vs NPT

CST runs on Central Standard Time (CST) at UTC-06:00. NPT runs on Nepal Time (NPT) at UTC+05:45. That puts CST 11 hours 45 minutes ahead of NPT — a difference of +11h 45m at the current offsets.

In practice, when it is 9:00 AM in CST it is 8:45 PM in NPT. Midnight in CST is 11:45 AM in NPT. Neither zone observes daylight saving time, so the offset between them stays constant all year.

CST to NPT time conversion table

CST (CST)	NPT (NPT)	Day
12:00 AM	11:45 AM	same day
6:00 AM	5:45 PM	same day
7:00 AM	6:45 PM	same day
8:00 AM	7:45 PM	same day
9:00 AM	8:45 PM	same day
12:00 PM	11:45 PM	same day
3:00 PM	2:45 AM	next day
5:00 PM	4:45 AM	next day
6:00 PM	5:45 AM	next day
9:00 PM	8:45 AM	next day

Why people convert CST to NPT time

Scheduling a call from CST to NPT: a 10:00 AM start in CST lands at 9:45 PM in NPT, so you can confirm the slot without doing the arithmetic yourself.
Handling a +11h 45m gap: CST and NPT 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 NPT is 8:45 PM in CST.
Booking travel or deliveries: tracking NPT local time against CST keeps pickup windows and arrival estimates honest across the +11h 45m offset.

Always state the zone abbreviation, not just the hour. "3:00 PM CST" is unambiguous; "3 PM" across a +11h 45m gap is not.
With a +11h 45m gap there is no shared 9-to-5 window, so alternate the early start: one week CST takes the early slot, the next week NPT does.

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.

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).

Best time to call between CST and NPT

With a +11h 45m offset there is no overlap inside a normal 9 AM – 5 PM day. NPT opens at 9:00 AM NPT, which is 8:45 PM in CST, so real-time calls need an early-morning or late-evening slot on one side.

Business hours overlap

CST and NPT have no shared working hours because of the +11h 45m gap. Teams need to alternate early starts or rely on asynchronous handovers.

CST is 11 hours 45 minutes ahead of NPT (CST UTC-06:00 → NPT UTC+05:45). 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

CST

☀ Currently in DST

Standard: UTC-06:00 · DST: UTC-05:00

Clocks fall back on Sun, Nov 1, 2026

NPT

Does not observe DST

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 CST and NPT?

CST (CST, UTC-06:00) is 11 hours 45 minutes ahead of NPT (NPT, UTC+05:45). The gap is currently +11h 45m.

How do I convert CST time to NPT time?

Add +11h 45m to CST local time. For example, 9:00 AM in CST is 8:45 PM in NPT.

What time is it in NPT right now?

NPT uses NPT at UTC+05:45. Use the live converter at the top of this page — it updates in real time and already accounts for the +11h 45m offset from CST.