What is the time difference between HST and WAT?

West Africa Time (WAT) is 11 hours ahead of Hawaii Standard Time (HST). HST uses a UTC offset of UTC-10, while WAT uses UTC+1. For example, when it's 9:00 AM in HST, it's 8:00 PM in WAT. 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 WAT?

To convert HST to WAT, add 11 hours to the HST time. For example, 9:00 AM HST is 8:00 PM WAT, and 5:00 PM HST is 4:00 AM WAT. 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 WAT when it's noon in HST?

When it's 12:00 PM (noon) in HST, it's 11:00 PM in WAT. This is because WAT is 11 hours ahead of HST. Similarly, when it's 6:00 PM in HST, it's 5:00 AM in WAT. 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 WAT from HST?

WAT is 11 hours ahead of HST. This means when it's 9:00 AM in HST, it's 8:00 PM in WAT, and when it's midnight in HST, it's 11:00 AM in WAT. 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 WAT ahead or behind HST?

WAT is ahead of HST by 11 hours. Clocks in WAT show a later time than HST, meaning the day starts earlier in WAT relative to HST. For example, when it's morning in HST, it's already afternoon or evening in WAT. 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 WAT observe daylight saving time?

No, West Africa Time does not observe daylight saving time. The UTC offset of UTC+1 remains the same year-round, making time conversions to WAT more predictable. Countries and regions in this timezone keep their clocks unchanged regardless of the season.

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

The best time for a call between HST and WAT is during overlapping business hours (9 AM – 5 PM) in both timezones. To reach someone in WAT during their work day, call between 10:00 PM and 6:00 AM your HST time. Avoid calling too early or late, as the 11 hours 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 WAT ever have the same time?

No, HST and WAT are always 11 hours 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 11 hours 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 WAT Converter

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

Timezone Details

Hawaii Standard Time

10:14 PM

Thursday, April 2, 2026

HST (UTC-10:00)

West Africa Time

9:14 AM

Friday, April 3, 2026

WAT (UTC+01:00)

Difference: +11 hours

HST DST: No

WAT DST: No

24-Hour Overview

HST — 24-hour overview

12a12a

3a3a

6a6a

9a9a

10a

11a

12p12p

3p3p

6p6p

9p9p

10p

11p

NightMorningBusinessEvening

WAT — 24-hour overview

11a11a

12p

2p2p

5p5p

8p8p

10p

11p11p

12a

2a2a

5a5a

8a8a

10a

NightMorningBusinessEvening

Frequently Asked Questions

Related Conversions

WAT to HST

Cities in These Timezones

HST Cities

Honolulu

WAT Cities

Lagos Abuja

More Tools

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

Learn More

How Time Zones Work Understanding DST Timezone Abbreviations

External Resources

Hawaii Standard Time on Wikipedia West Africa Time on Wikipedia IANA Time Zone Database