What is the time difference between HST and NPT?

Nepal Time (NPT) is 15 hours and 45 minutes ahead of Hawaii Standard Time (HST). HST uses a UTC offset of UTC-10, while NPT uses UTC+5:45. For example, when it's 9:00 AM in HST, it's 12:45 AM in NPT. This difference remains constant year-round since neither timezone observes daylight saving time. Use the conversion table above to see the exact time for each hour of the day.

How do I convert HST to NPT?

To convert HST to NPT, add 15 hours and 45 minutes to the HST time. For example, 9:00 AM HST is 12:45 AM NPT, and 5:00 PM HST is 8:45 AM NPT. Since neither timezone observes DST, this conversion stays the same all year. You can also use the interactive converter above for quick, accurate results.

What time is it in NPT when it's noon in HST?

When it's 12:00 PM (noon) in HST, it's 3:45 AM in NPT. This is because NPT is 15 hours and 45 minutes ahead of HST. Similarly, when it's 6:00 PM in HST, it's 9:45 AM in NPT. This relationship is constant throughout the year. The color-coded conversion table above shows every hour mapped between both timezones.

How many hours ahead is NPT from HST?

NPT is 15 hours and 45 minutes ahead of HST. This means when it's 9:00 AM in HST, it's 12:45 AM in NPT, and when it's midnight in HST, it's 3:45 PM in NPT. This offset is constant throughout the year since neither timezone uses daylight saving time. The conversion table above provides a complete hour-by-hour mapping.

Is NPT ahead or behind HST?

NPT is ahead of HST by 15 hours and 45 minutes. Clocks in NPT show a later time than HST, meaning the day starts earlier in NPT relative to HST. For example, when it's morning in HST, it's already afternoon or evening in NPT. This difference stays the same year-round.

Does HST observe daylight saving time?

No, Hawaii Standard Time does not observe daylight saving time. The UTC offset of UTC-10 remains the same year-round, making time conversions from HST more predictable. Countries and regions in this timezone keep their clocks unchanged regardless of the season.

Does NPT observe daylight saving time?

No, Nepal Time does not observe daylight saving time. The UTC offset of UTC+5:45 remains the same year-round, which simplifies time conversions. Regions using NPT keep their clocks unchanged regardless of the season.

What is the best time to call from HST to NPT?

The best time for a call between HST and NPT is during overlapping business hours (9 AM – 5 PM) in both timezones. To reach someone in NPT during their work day, call between 5:15 PM and 1:15 AM your HST time. Avoid calling too early or late, as the 15 hours and 45 minutes difference means your evening could be their late night. Check the color-coded conversion table above — green hours indicate business hours in both zones, making it easy to find the ideal time.

Do HST and NPT ever have the same time?

No, HST and NPT are always 15 hours and 45 minutes apart and never display the same clock time simultaneously. Neither timezone observes DST, so the difference is constant year-round with no seasonal variation. The 15 hours and 45 minutes offset is determined by their fixed positions relative to the Prime Meridian (UTC). You can always rely on this consistent difference when planning across these timezones.

HST to NPT Converter

Convert Hawaii Standard Time to Nepal Time. See the hour-by-hour conversion table below.

Timezone Details

Hawaii Standard Time

6:03 AM

Thursday, April 2, 2026

HST (UTC-10:00)

Kathmandu

9:48 PM

Thursday, April 2, 2026

Kathmandu (UTC+05:45)

Difference: +15h 45m

HST DST: No

24-Hour Overview

HST — 24-hour overview

12a12a

3a3a

6a6a

9a9a

10a

11a

12p12p

3p3p

6p6p

9p9p

10p

11p

NightMorningBusinessEvening

Kathmandu — 24-hour overview

3p3p

6p6p

9p9p

10p

11p

12a12a

3a3a

6a6a

9a9a

10a

11a

12p12p

NightMorningBusinessEvening

Frequently Asked Questions

Related Conversions

NPT to HST

Cities in These Timezones

HST Cities

Honolulu

NPT Cities

Kathmandu

More Tools

Compare HST & NPT Plan a Meeting (HST & NPT)See on Map

Learn More

How Time Zones Work Understanding DST Timezone Abbreviations

External Resources

Hawaii Standard Time on Wikipedia IANA Time Zone Database