Three numbers. The ones that decide the meeting.
When the world meets at work.
Read the day in both zones.
If it's this in Tokyo, it's that in Hagåtña.
When it's 8:00 am in Tokyo, it's 9:00 am in Hagåtña — late morning there, the same day.
When it's 10:00 am in Tokyo, it's 11:00 am in Hagåtña — late morning there, the same day.
When it's 12:00 pm in Tokyo, it's 1:00 pm in Hagåtña — midday there, the same day.
When it's 3:00 pm in Tokyo, it's 4:00 pm in Hagåtña — afternoon there, the same day.
When it's 5:00 pm in Tokyo, it's 6:00 pm in Hagåtña — evening there, the same day.
When it's 9:00 pm in Tokyo, it's 10:00 pm in Hagåtña — night there, the same day.
Crossing the border. Money, language, plugs.
Money changes hands at the border: Tokyo uses the JPY (¥) and Hagåtña uses the USD ($). Language shifts too — Japanese in Tokyo, Chamorro in Hagåtña. Be careful behind the wheel: Tokyo drives on the left, Hagåtña on the right.
- Country
- Japan
- Capital
- Tokyo
- Currency
- Japanese yen (JPY · ¥)
- Language
- Japanese
- Calling code
- +81
- Drives on
- Left
- Country
- Guam
- Capital
- Hagåtña
- Currency
- United States dollar (USD · $)
- Language
- Chamorro, English, Spanish
- Calling code
- +1671
- Drives on
- Right
Quick answers. Before you book the call.
What's the time difference between Tokyo and Hagåtña?
Tokyo is 1 hour ahead of Hagåtña. Tokyo runs on GMT+9 and Hagåtña on GMT+10. 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 it's 10 am in Tokyo, what time is it in Hagåtña?
10:00 am in Tokyo is 11:00 am in Hagåtña on the same day — late morning there. The same shift applies to any hour; the quick-conversion cards and the 24-hour table above cover the full day.
When it's 3 pm in Tokyo, what time is it in Hagåtña?
3:00 pm in Tokyo is 4:00 pm in Hagåtña on the same day — afternoon there. The same shift applies to any hour; the quick-conversion cards and the 24-hour table above cover the full day.
When's the best time to schedule a meeting?
There are 7 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 Tokyo from Hagåtña?
About 2,521 km as the crow flies (great-circle distance). A non-stop commercial flight cruises that in roughly 3h 28m, 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 Tokyo and Hagåtña use?
Tokyo uses the Japanese yen (JPY, ¥); Hagåtña uses the United States dollar (USD, $). 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 Tokyo from Hagåtña?
Dial the international prefix used by your carrier (often 00), then +81, 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 Tokyo and Hagåtña?
Tokyo primarily speaks Japanese; Hagåtña speaks Chamorro, English, Spanish. English is widely used in business contexts in major cities of both, but written contracts may need translation.
Do Tokyo and Hagåtña drive on the same side of the road?
No. Japan drives on the left, Guam on the right. If you're renting, expect a learning curve on the first day — especially at roundabouts and when judging the centre of the lane.