Does it handle Daylight Saving Time?

Yes, the tool automatically adjusts for Daylight Saving Time based on the specific date you select, ensuring accurate conversions year-round.

Can I add multiple cities?

Yes, you can add as many cities as you need to the dashboard to compare times across your entire global network simultaneously.

BST to Honolulu

-11h

BST

BSTSOURCE

UTC+01:00☀ DST active

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Honolulu

HST

USA · UTC-10:00

HH01

MM00

01:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

BST

Honolulu

12:00 AM

1:00 PM-1

2:00 AM

3:00 PM-1

4:00 AM

5:00 PM-1

6:00 AM

7:00 PM-1

8:00 AM

9:00 PM-1

10:00 AM

11:00 PM-1

12:00 PM

1:00 AM

2:00 PM

3:00 AM

4:00 PM

5:00 AM

6:00 PM

7:00 AM

8:00 PM

9:00 AM

10:00 PM

11:00 AM

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

BST and HST on the World Map

The map below highlights the BST (British Summer Time) and HST (Hawaii Standard Time) timezone regions across the globe.

BST Zone

→

HST Zone

Explore all world timezones interactively →

BST – British Summer Time

UTC+01:00

British Summer Time (BST, UTC+01:00) is the daylight saving period in the United Kingdom, running from late March to late October.

Countries in BST

United Kingdom

Major Cities in BST

LondonBirminghamManchesterGlasgowEdinburghCardiffBelfastLiverpoolBristolLeeds

Key Facts about BST

•BST runs from the last Sunday in March to the last Sunday in October.
•BST is exactly one hour ahead of GMT, the UK's standard time.
•During BST, London is 4 hours ahead of New York while the US is on Eastern Daylight Time.
•The Isle of Man and the Channel Islands also observe BST.

Daylight Saving:Yes – switches to BST

Learn more about BST on Wikipedia

HST – Hawaii Standard Time

UTC-10:00

Hawaii Standard Time (HST) is the time zone for the Hawaiian Islands, 10 hours behind UTC.

Countries in HST

United States (Hawaii)

Major Cities in HST

HonoluluHiloKailuaPearl CityKapolei

Key Facts about HST

•Hawaii does not observe daylight saving time.
•HST is 5 hours behind EST in winter and 6 hours behind EDT in summer.
•Hawaii is one of only two US states that don't observe DST (the other is Arizona).

Daylight Saving:No – UTC-10:00 year-round

Learn more about HST on Wikipedia

About Honolulu

Wikipedia

Honolulu operates on Hawaii Standard Time (HST), UTC-10 with no daylight saving. Hawaii's consistent time makes it a predictable connection between Asia and mainland USA.

Population:350,000

Metro:1 million

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

Currency:USD ($)

Key Landmarks

Waikiki BeachDiamond HeadPearl HarborIolani PalaceHanauma Bay

Did You Know?

Pearl Harbor memorial receives over 2 million visitors annually.

Learn more about HST timezone →

BST to Honolulu Time Difference – Complete Guide

BST runs on British Summer Time (BST) at UTC+01:00. Honolulu runs on Hawaii-Aleutian Standard Time (HST) at UTC-10:00. That puts BST 11 hours behind Honolulu — a difference of -11h at the current offsets.

In practice, when it is 9:00 AM in BST it is 10:00 PM in Honolulu on the previous day. Midnight in BST is 1:00 PM in Honolulu. Neither zone observes daylight saving time, so the offset between them stays constant all year.

BST to Honolulu time conversion table

BST (BST)	Honolulu (HST)	Day
12:00 AM	1:00 PM	previous day
6:00 AM	7:00 PM	previous day
7:00 AM	8:00 PM	previous day
8:00 AM	9:00 PM	previous day
9:00 AM	10:00 PM	previous day
12:00 PM	1:00 AM	same day
3:00 PM	4:00 AM	same day
5:00 PM	6:00 AM	same day
6:00 PM	7:00 AM	same day
9:00 PM	10:00 AM	same day

Why people convert BST to Honolulu time

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

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

About BST (British Summer Time)

British Summer Time (BST) is the daylight saving period in the United Kingdom, when clocks move one hour forward from Greenwich Mean Time (GMT, UTC+00:00) to UTC+01:00. It runs from the last Sunday in March to the last Sunday in October. England, Scotland, Wales and Northern Ireland all follow it, along with the Isle of Man and the Channel Islands of Jersey and Guernsey. During BST, London is one hour ahead of UTC, four hours ahead of New York on Eastern Daylight Time, and five hours ahead of New York once the United States returns to Eastern Standard Time in November. BST is also used to abbreviate Bangladesh Standard Time (UTC+06:00), which is listed separately on this site.

About HST (Hawaii Standard Time)

Hawaii Standard Time (HST) is used in the state of Hawaii and does not observe daylight saving time. This makes HST one of the most consistent time zones in the US. The Hawaiian Islands are among the last places on Earth to see a new calendar day.

Best time to call between BST and Honolulu

With a -11h offset there is no overlap inside a normal 9 AM – 5 PM day. Honolulu opens at 9:00 AM HST, which is 10:00 PM in BST, so real-time calls need an early-morning or late-evening slot on one side.

Business hours overlap

BST and Honolulu have no shared working hours because of the -11h gap. Teams need to alternate early starts or rely on asynchronous handovers.

BST is 11 hours behind Honolulu (BST UTC+01:00 → HST UTC-10:00). 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

BST

☀ Currently in DST

Standard: UTC+00:00 · DST: UTC+01:00

Clocks fall back on Sun, Oct 25, 2026

Honolulu

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 BST and Honolulu?

BST (BST, UTC+01:00) is 11 hours behind Honolulu (HST, UTC-10:00). The gap is currently -11h.

How do I convert BST time to Honolulu time?

Add -11h to BST local time. For example, 9:00 AM in BST is 10:00 PM in Honolulu (previous day).

What time is it in Honolulu right now?

Honolulu uses HST at UTC-10:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -11h offset from BST.

What is the best time to call Honolulu from BST?

There is no shared working-hours window because of the -11h gap. The closest option is 1:00 PM in BST, which is 2:00 AM in Honolulu.

Which is behind, BST or Honolulu?

BST is 11 hours behind Honolulu. When it is 12:00 PM in BST it is 1:00 AM in Honolulu.

Do BST and Honolulu use different time zones?

BST uses BST at UTC+01:00, while Honolulu (USA) uses HST at UTC-10:00. The IANA identifiers are Europe/London and Pacific/Honolulu.

Does daylight saving time affect the BST–Honolulu difference?

Neither zone observes daylight saving time, so the -11h offset between BST and Honolulu is fixed all year.

Which other cities share BST's time zone?

BST also covers London, Birmingham, Manchester, Glasgow, Edinburgh, Cardiff, Belfast, Liverpool and 2 more.

Which countries use BST, BST's zone?

BST is used in United Kingdom.

Is there a day difference between BST and Honolulu?

Not normally. The -11h gap only pushes the date over the previous day.

What is the time difference between BST and Honolulu?

Honolulu is -11h from BST.

What timezone is BST in?

BST operates on its local timezone.

What timezone is Honolulu in?

Honolulu operates on Hawaii Standard Time (HST), UTC-10 with no daylight saving. Hawaii's consistent time makes it a predictable connection between Asia and mainland USA.