EST to Honolulu
-5hEST
ESTSOURCEHonolulu
HSTGreen rows indicate typical business hours (9 AM - 5 PM)
EST and HST on the World Map
The map below highlights the EST (Eastern Standard Time) and HST (Hawaii Standard Time) timezone regions across the globe.
EST – Eastern Standard Time
UTC-05:00Eastern Standard Time (EST) is the time zone for the eastern United States and Canada, 5 hours behind UTC.
- •EST is the most widely used time zone in the United States by population.
- •The New York Stock Exchange (NYSE) and NASDAQ operate on Eastern Time, opening at 9:30 AM EST.
- •23 US states are fully or partially in the Eastern Time Zone.
- •EST was established by the Standard Time Act of 1918.
- •Over 47% of the US population lives in the Eastern Time Zone.
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.
EST vs Honolulu: Offsets, DST and Best Call Times
EST runs on Eastern Standard Time (EST) at UTC-05:00. Honolulu runs on Hawaii-Aleutian Standard Time (HST) at UTC-10:00. That puts EST 5 hours behind Honolulu — a difference of -5h at the current offsets.
In practice, when it is 9:00 AM in EST it is 4:00 AM in Honolulu. Midnight in EST is 7:00 PM in Honolulu. Neither zone observes daylight saving time, so the offset between them stays constant all year.
EST to Honolulu time conversion table
| EST (EST) | Honolulu (HST) | Day |
|---|---|---|
| 12:00 AM | 7:00 PM | previous day |
| 6:00 AM | 1:00 AM | same day |
| 7:00 AM | 2:00 AM | same day |
| 8:00 AM | 3:00 AM | same day |
| 9:00 AM | 4:00 AM | same day |
| 12:00 PM | 7:00 AM | same day |
| 3:00 PM | 10:00 AM | same day |
| 5:00 PM | 12:00 PM | same day |
| 6:00 PM | 1:00 PM | same day |
| 9:00 PM | 4:00 PM | same day |
Why people convert EST to Honolulu time
- Scheduling a call from EST to Honolulu: a 10:00 AM start in EST lands at 5:00 AM in Honolulu, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both EST and Honolulu are inside the 9-to-5 working day between 2:00 PM and 5:00 PM EST time (9:00 AM–12:00 PM HST). That is roughly 3 hours of usable overlap.
- Booking travel or deliveries: tracking Honolulu local time against EST keeps pickup windows and arrival estimates honest across the -5h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM EST" is unambiguous; "3 PM" across a -5h gap is not.
- Block 2:00 PM–5:00 PM EST as the recurring meeting window if you work primarily from EST and need Honolulu colleagues present.
About EST (Eastern Standard Time)
Eastern Standard Time (EST) is observed during the winter months in the eastern part of North America. It covers 23 US states and parts of Canada including Ontario and Quebec. EST is the most populous time zone in the United States, home to major financial centers like New York City and global organizations headquartered in Washington D.C. During daylight saving time (March–November), clocks shift to Eastern Daylight Time (EDT, UTC-04:00). The time zone also covers parts of the Caribbean and Central America including Panama, Jamaica, and the Cayman Islands.
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 EST and Honolulu
Both EST and Honolulu sit inside the 9 AM – 5 PM working day between 2:00 PM–5:00 PM EST, which is 9:00 AM–12:00 PM HST. That gives roughly 3 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
EST and Honolulu overlap for about 3 hours during the working day — enough for meetings if you avoid the edges of the window.
EST is 5 hours behind Honolulu (EST UTC-05:00 → HST UTC-10:00). The shared working window is 2:00 PM–5:00 PM EST. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
EST
☀ Currently in DST
Standard: UTC-05:00 · DST: UTC-04:00
Clocks fall back on Sun, Nov 1, 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:
Frequently Asked Questions
What is the time difference between EST and Honolulu?
EST (EST, UTC-05:00) is 5 hours behind Honolulu (HST, UTC-10:00). The gap is currently -5h.
How do I convert EST time to Honolulu time?
Add -5h to EST local time. For example, 9:00 AM in EST is 4:00 AM in Honolulu.
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 -5h offset from EST.
What is the best time to call Honolulu from EST?
Call between 2:00 PM and 5:00 PM EST — that maps to 9:00 AM–12:00 PM HST and keeps both parties inside the working day.
Which is behind, EST or Honolulu?
EST is 5 hours behind Honolulu. When it is 12:00 PM in EST it is 7:00 AM in Honolulu.
Do EST and Honolulu use different time zones?
EST uses EST at UTC-05:00, while Honolulu (USA) uses HST at UTC-10:00. The IANA identifiers are America/New_York and Pacific/Honolulu.
Does daylight saving time affect the EST–Honolulu difference?
Neither zone observes daylight saving time, so the -5h offset between EST and Honolulu is fixed all year.
Which other cities share EST's time zone?
EST also covers New York City, Washington D.C., Miami, Toronto, Philadelphia, Atlanta, Boston, Montreal and 8 more.
Which countries use EST, EST's zone?
EST is used in United States (Eastern), Canada (Ontario, Quebec), Mexico (Quintana Roo), Panama, Jamaica, Cayman Islands, Haiti, Bahamas and 4 more.
Is there a day difference between EST and Honolulu?
Not normally. The -5h gap only pushes the date over the previous day.
What is the time difference between EST and Honolulu?
Honolulu is -5h from EST.
What timezone is EST in?
EST 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 EST (Eastern Standard Time)?
EST is used in United States (Eastern), Canada (Ontario, Quebec), Mexico (Quintana Roo), Panama, Jamaica, Cayman Islands, and 6 more countries.
Does EST observe daylight saving time?
Yes, EST switches to EDT during summer months.
What are some interesting facts about EST?
EST is the most widely used time zone in the United States by population. The New York Stock Exchange (NYSE) and NASDAQ operate on Eastern Time, opening at 9:30 AM EST.
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 EST, what time is it in Honolulu?
When it is 12:00 AM (midnight) in EST (EST), it is -5h later in Honolulu (HST).
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