Chicago to NPT
+10h 45mChicago
CDTSOURCENPT
NPTGreen rows indicate typical business hours (9 AM - 5 PM)
CDT and NPT on the World Map
The map below highlights the CDT (Central Standard Time) and NPT (Nepal Time) timezone regions across the globe.
CST – Central Standard Time
UTC-06:00Central Standard Time (CST) is the time zone for the central United States, Canada, and Mexico, 6 hours behind UTC.
- •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.
NPT – Nepal Time
UTC+05:45Nepal 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.
- •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.
About Chicago
WikipediaChicago operates on Central Time (CST/CDT), 1 hour behind New York. Home to CME and CBOE, Chicago is a global center for derivatives trading.
The Chicago Board of Trade is the world's oldest futures and options exchange.
Time Conversion Guide: Chicago to NPT
Chicago runs on Central Daylight Time (CDT) at UTC-05:00, currently observing daylight saving time. NPT runs on Nepal Time (NPT) at UTC+05:45. That puts Chicago 10 hours 45 minutes ahead of NPT — a difference of +10h 45m at the current offsets.
In practice, when it is 9:00 AM in Chicago it is 7:45 PM in NPT. Midnight in Chicago is 10:45 AM in NPT.Chicago observes daylight saving time while NPT does not, so the gap narrows or widens by an hour part of the year.
Chicago to NPT time conversion table
| Chicago (CDT) | NPT (NPT) | Day |
|---|---|---|
| 12:00 AM | 10:45 AM | same day |
| 6:00 AM | 4:45 PM | same day |
| 7:00 AM | 5:45 PM | same day |
| 8:00 AM | 6:45 PM | same day |
| 9:00 AM | 7:45 PM | same day |
| 12:00 PM | 10:45 PM | same day |
| 3:00 PM | 1:45 AM | next day |
| 5:00 PM | 3:45 AM | next day |
| 6:00 PM | 4:45 AM | next day |
| 9:00 PM | 7:45 AM | next day |
Why people convert Chicago to NPT time
- Scheduling a call from Chicago to NPT: a 10:00 AM start in Chicago lands at 8:45 PM in NPT, so you can confirm the slot without doing the arithmetic yourself.
- Handling a +10h 45m gap: Chicago 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 7:45 PM in Chicago.
- Coordinating a Chicago-based team with NPT 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 CDT" 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 Chicago takes the early slot, the next week NPT does.
- Chicago: Clocks fall back on Sun, Nov 1, 2026. Re-check this page after that date because the offset changes and so does the +10h 45m gap.
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 Chicago and NPT
With a +10h 45m offset there is no overlap inside a normal 9 AM – 5 PM day. NPT opens at 9:00 AM NPT, which is 7:45 PM in Chicago, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
Chicago and NPT have no shared working hours because of the +10h 45m gap. Teams need to alternate early starts or rely on asynchronous handovers.
Chicago is 10 hours 45 minutes ahead of NPT (CDT UTC-05:00 → 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
Chicago
☀ 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:
Frequently Asked Questions
What is the time difference between Chicago and NPT?
Chicago (CDT, UTC-05:00) is 10 hours 45 minutes ahead of NPT (NPT, UTC+05:45). The gap is currently +10h 45m.
How do I convert Chicago time to NPT time?
Add +10h 45m to Chicago local time. For example, 9:00 AM in Chicago is 7:45 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 +10h 45m offset from Chicago.
What is the best time to call NPT from Chicago?
There is no shared working-hours window because of the +10h 45m gap. The closest option is 1:00 PM in Chicago, which is 11:45 PM in NPT.
Which is ahead, Chicago or NPT?
Chicago is 10 hours 45 minutes ahead of NPT. When it is 12:00 PM in Chicago it is 10:45 PM in NPT.
Do Chicago and NPT use different time zones?
Chicago (USA) uses CDT at UTC-05:00, while NPT uses NPT at UTC+05:45. The IANA identifiers are America/Chicago and Asia/Kathmandu.
Does daylight saving time affect the Chicago–NPT difference?
Yes at the moment: Chicago is on daylight saving time and NPT is not, so the +10h 45m gap shifts by an hour when exactly one of them changes clocks.
Which other cities share Chicago's time zone?
CDT also covers Chicago, Houston, Dallas, San Antonio, Mexico City, Austin, Winnipeg, Memphis and 6 more.
Which countries use CDT, Chicago's zone?
CDT is used in United States (Central), Canada (Manitoba, Saskatchewan), Mexico, Guatemala, Honduras, El Salvador, Costa Rica, Nicaragua and 1 more.
Is there a day difference between Chicago and NPT?
Not normally. The +10h 45m gap only pushes the date over for late-evening times.
What is the time difference between Chicago and NPT?
NPT is +10h 45m from Chicago.
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 timezone is NPT in?
NPT operates on its local timezone.
What are the business hours in Chicago?
Standard business hours in Chicago are 8:00 AM - 5:00 PM CST.
Which countries use CST (Central Standard Time)?
CST is used in United States (Central), Canada (Manitoba, Saskatchewan), Mexico, Guatemala, Honduras, El Salvador, and 3 more countries.
Does CST observe daylight saving time?
Yes, CST switches to CDT during summer months.
What are some interesting facts about CST?
CST covers 20 US states fully or partially. Chicago and Houston are the two largest cities in the Central Time Zone.
Which cities are in the NPT timezone?
Major cities in the NPT timezone include Kathmandu, Pokhara, Lalitpur, Bharatpur, Biratnagar.
What is the UTC offset for NPT?
Nepal Time (NPT) is at UTC+05:45.
What should I know about the NPT timezone?
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.
When is it midnight in Chicago, what time is it in NPT?
When it is 12:00 AM (midnight) in Chicago (CST), it is +10h 45m later in NPT (NPT).
Related Developer Tools
Explore more tools that work great with timezone conversions for international teams:
Related Timezone Conversions
More Chicago time conversions
- chicago to new york
- chicago to los angeles
- chicago to denver
- chicago to honolulu
- chicago to anchorage
- chicago to cst
- chicago to cdt
- chicago to toronto
- chicago to vancouver
- chicago to mexico city
- chicago to sao paulo
- chicago to buenos aires
- chicago to bogota
- chicago to lima
- chicago to santiago
- chicago to london
- chicago to dubai
- chicago to tokyo
- chicago to singapore
- chicago to sydney
- chicago to paris
- chicago to delhi
- chicago to mumbai
- chicago to berlin
- chicago to hong kong
- chicago to kathmandu
- new york to chicago
- london to chicago
- dubai to chicago
- tokyo to chicago
- singapore to chicago
- sydney to chicago
- los angeles to chicago
- paris to chicago
- delhi to chicago
- mumbai to chicago
See every conversion from Chicago →·See every conversion from NPT →