When the world meets at work.
Read the day in both zones.
Crossing the border. Money, language, plugs.
Money changes hands at the border: Honolulu uses the USD ($) and Osaka uses the JPY (¥). Language shifts too — English in Honolulu, Japanese in Osaka. Be careful behind the wheel: Honolulu drives on the right, Osaka on the left.
- Country
- United States
- Capital
- Washington, D.C.
- Currency
- United States dollar (USD · $)
- Language
- English
- Calling code
- +1
- Drives on
- Right
- Country
- Japan
- Capital
- Tokyo
- Currency
- Japanese yen (JPY · ¥)
- Language
- Japanese
- Calling code
- +81
- Drives on
- Left
Quick answers. Before you book the call.
What's the time difference between Honolulu and Osaka?
Honolulu is 19 hours ahead of Osaka. Honolulu runs on GMT-10 and Osaka on GMT+9. The gap can shift by an hour when either side enters or leaves daylight saving — the live clocks above always reflect the current offset.
When's the best time to schedule a meeting?
There are 3 hours where both cities are inside a 09:00–17:00 workday. Aim for the middle of that window so neither side is starting or closing out.
Does daylight saving time change the difference?
Yes, if either city observes DST. When one side shifts and the other doesn't, the gap changes by one hour. The DST badges under each clock show whether each zone is currently shifted and when the next transition lands.
How far is Honolulu from Osaka?
About 6,594 km as the crow flies (great-circle distance). A non-stop commercial flight cruises that in roughly 8h 15m, not counting airport time, winds, or routing around restricted airspace.
Can I send this meeting time as a calendar invite?
Yes. Pick a time on the slider above, open the meeting card, customize the title and duration, then download the .ics file. It imports cleanly into Google Calendar, Outlook, and Apple Calendar with the correct timezone attached.
What currency do Honolulu and Osaka use?
Honolulu uses the United States dollar (USD, $); Osaka uses the Japanese yen (JPY, ¥). Check the live rate before transferring money or paying with a card abroad — most banks add a 1–3 % FX margin on top of the mid-market rate.
How do I call Honolulu from Osaka?
Dial the international prefix used by your carrier (often 00), then +1, then the local number — drop any leading zero of the city or mobile code. For free calls, WhatsApp, Signal, and FaceTime work over Wi-Fi regardless of country code.
What language is spoken in Honolulu and Osaka?
Honolulu primarily speaks English; Osaka speaks Japanese. English is widely used in business contexts in major cities of both, but written contracts may need translation.
Do Honolulu and Osaka drive on the same side of the road?
No. United States drives on the right, Japan on the left. If you're renting, expect a learning curve on the first day — especially at roundabouts and when judging the centre of the lane.