Ghana to Honolulu
-10hGhana
GMTSOURCEHonolulu
HSTGreen rows indicate typical business hours (9 AM - 5 PM)
GMT and HST on the World Map
The map below highlights the GMT (Greenwich Mean Time) and HST (Hawaii Standard Time) timezone regions across the globe.
GMT – Greenwich Mean Time
UTC+00:00Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatory in Greenwich, London. It is the same as UTC+00:00.
- •GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London.
- •The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
- •GMT and UTC are often used interchangeably, but UTC is based on atomic clocks.
- •Iceland uses GMT year-round and never observes daylight saving time.
- •The UK switches from GMT to BST (British Summer Time) in late March each year.
HST – Hawaii Standard Time
UTC-10:00Hawaii Standard Time (HST) is the time zone for the Hawaiian Islands, 10 hours behind UTC.
- •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).
About Honolulu
WikipediaHonolulu 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.
Pearl Harbor memorial receives over 2 million visitors annually.
Everything You Need to Know About Ghana and Honolulu Time
Ghana runs on Greenwich Mean Time (GMT) at UTC+00:00. Honolulu runs on Hawaii-Aleutian Standard Time (HST) at UTC-10:00. That puts Ghana 10 hours behind Honolulu — a difference of -10h at the current offsets.
In practice, when it is 9:00 AM in Ghana it is 11:00 PM in Honolulu on the previous day. Midnight in Ghana is 2:00 PM in Honolulu. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Ghana to Honolulu time conversion table
| Ghana (GMT) | Honolulu (HST) | Day |
|---|---|---|
| 12:00 AM | 2:00 PM | previous day |
| 6:00 AM | 8:00 PM | previous day |
| 7:00 AM | 9:00 PM | previous day |
| 8:00 AM | 10:00 PM | previous day |
| 9:00 AM | 11:00 PM | previous day |
| 12:00 PM | 2:00 AM | same day |
| 3:00 PM | 5:00 AM | same day |
| 5:00 PM | 7:00 AM | same day |
| 6:00 PM | 8:00 AM | same day |
| 9:00 PM | 11:00 AM | same day |
Why people convert Ghana to Honolulu time
- Scheduling a call from Ghana to Honolulu: a 10:00 AM start in Ghana lands at 12:00 AM in Honolulu, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -10h gap: Ghana 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 11:00 PM in Ghana.
- Booking travel or deliveries: tracking Honolulu local time against Ghana keeps pickup windows and arrival estimates honest across the -10h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM GMT" is unambiguous; "3 PM" across a -10h gap is not.
- With a -10h gap there is no shared 9-to-5 window, so alternate the early start: one week Ghana takes the early slot, the next week Honolulu does.
About GMT (Greenwich Mean Time)
Greenwich Mean Time (GMT) is the clock time at the Royal Observatory in Greenwich, London, which sits on the Prime Meridian (0° longitude). GMT serves as the reference point from which all other time zones are calculated. The United Kingdom uses GMT during winter months and switches to British Summer Time (BST, UTC+01:00) from late March to late October. Several West African nations use GMT year-round. GMT is often used interchangeably with UTC (Coordinated Universal Time), although technically they are different – UTC is based on atomic clocks while GMT is based on Earth's rotation.
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 Ghana and Honolulu
With a -10h offset there is no overlap inside a normal 9 AM – 5 PM day. Honolulu opens at 9:00 AM HST, which is 11:00 PM in Ghana, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
Ghana and Honolulu have no shared working hours because of the -10h gap. Teams need to alternate early starts or rely on asynchronous handovers.
Ghana is 10 hours behind Honolulu (GMT UTC+00:00 → 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.
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 Ghana and Honolulu?
Ghana (GMT, UTC+00:00) is 10 hours behind Honolulu (HST, UTC-10:00). The gap is currently -10h.
How do I convert Ghana time to Honolulu time?
Add -10h to Ghana local time. For example, 9:00 AM in Ghana is 11:00 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 -10h offset from Ghana.
What is the best time to call Honolulu from Ghana?
There is no shared working-hours window because of the -10h gap. The closest option is 1:00 PM in Ghana, which is 3:00 AM in Honolulu.
Which is behind, Ghana or Honolulu?
Ghana is 10 hours behind Honolulu. When it is 12:00 PM in Ghana it is 2:00 AM in Honolulu.
Do Ghana and Honolulu use different time zones?
Ghana (Ghana) uses GMT at UTC+00:00, while Honolulu (USA) uses HST at UTC-10:00. The IANA identifiers are Africa/Accra and Pacific/Honolulu.
Does daylight saving time affect the Ghana–Honolulu difference?
Neither zone observes daylight saving time, so the -10h offset between Ghana and Honolulu is fixed all year.
Which other cities share Ghana's time zone?
GMT also covers London, Dublin, Lisbon, Accra, Reykjavik, Edinburgh, Casablanca, Dakar and 5 more.
Which countries use GMT, Ghana's zone?
GMT is used in United Kingdom, Ireland, Iceland, Portugal (mainland), Ghana, Senegal, Mali, Mauritania and 7 more.
Is there a day difference between Ghana and Honolulu?
Not normally. The -10h gap only pushes the date over the previous day.
What is the time difference between Ghana and Honolulu?
Honolulu is -10h from Ghana.
What timezone is Ghana in?
Ghana 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.
What are the business hours in Honolulu?
Standard business hours in Honolulu are 8:00 AM - 5:00 PM HST.
Which countries use GMT (Greenwich Mean Time)?
GMT is used in United Kingdom, Ireland, Iceland, Portugal (mainland), Ghana, Senegal, and 9 more countries.
Does GMT observe daylight saving time?
Yes, GMT switches to BST during summer months.
What are some interesting facts about GMT?
GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London. The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
Which cities are in the HST timezone?
Major cities in the HST timezone include Honolulu, Hilo, Kailua, Pearl City, Kapolei.
What is the UTC offset for HST?
Hawaii Standard Time (HST) is at UTC-10:00.
What should I know about the HST timezone?
Hawaii does not observe daylight saving time. HST is 5 hours behind EST in winter and 6 hours behind EDT in summer.
When is it midnight in Ghana, what time is it in Honolulu?
When it is 12:00 AM (midnight) in Ghana (GMT), it is -10h later in Honolulu (HST).
Related Developer Tools
Explore more tools that work great with timezone conversions for international teams:
Related Timezone Conversions
More Ghana time conversions
- ghana to accra
- ghana to new york
- ghana to london
- ghana to dubai
- ghana to tokyo
- ghana to singapore
- ghana to sydney
- ghana to los angeles
- ghana to paris
- ghana to delhi
- ghana to mumbai
- ghana to berlin
- ghana to hong kong
- ghana to toronto
- ghana to kathmandu
- new york to ghana
- london to ghana
- dubai to ghana
- tokyo to ghana
- singapore to ghana
- sydney to ghana
- los angeles to ghana
- paris to ghana
- delhi to ghana
- mumbai to ghana
- berlin to ghana
- hong kong to ghana
- toronto to ghana
- kathmandu to ghana
See every conversion from Ghana →·See every conversion from Honolulu →