Nukuʻalofa×San Francisco
Three numbers. The ones that decide the meeting.
When the world meets at work.
Read the day in both zones.
Crossing the border. Money, language, plugs.
Money changes hands at the border: Nukuʻalofa uses the TOP (T$) and San Francisco uses the USD ($). Conversations can stay in English, which is official in both countries. Be careful behind the wheel: Nukuʻalofa drives on the left, San Francisco on the right.
- Country
- Tonga
- Capital
- Nuku'alofa
- Currency
- Tongan paʻanga (TOP · T$)
- Language
- English, Tongan
- Calling code
- +676
- Drives on
- Left
- Country
- United States
- Capital
- Washington, D.C.
- Currency
- United States dollar (USD · $)
- Language
- English
- Calling code
- +1
- Drives on
- Right
Quick answers. Before you book the call.
What's the time difference between Nukuʻalofa and San Francisco?
Nukuʻalofa is 20 hours behind San Francisco. Nukuʻalofa runs on GMT+13 and San Francisco on GMT-7. The gap can shift by an hour when either side enters or leaves daylight saving — the live clocks above always reflect the current offset.
When's the best time to schedule a meeting?
There are 4 hours where both cities are inside a 09:00–17:00 workday. Aim for the middle of that window so neither side is starting or closing out.
Does daylight saving time change the difference?
Yes, if either city observes DST. When one side shifts and the other doesn't, the gap changes by one hour. The DST badges under each clock show whether each zone is currently shifted and when the next transition lands.
How far is Nukuʻalofa from San Francisco?
About 8,562 km as the crow flies (great-circle distance). A non-stop commercial flight cruises that in roughly 10h 34m, not counting airport time, winds, or routing around restricted airspace.
Can I send this meeting time as a calendar invite?
Yes. Pick a time on the slider above, open the meeting card, customize the title and duration, then download the .ics file. It imports cleanly into Google Calendar, Outlook, and Apple Calendar with the correct timezone attached.
What currency do Nukuʻalofa and San Francisco use?
Nukuʻalofa uses the Tongan paʻanga (TOP, T$); San Francisco 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 Nukuʻalofa from San Francisco?
Dial the international prefix used by your carrier (often 011), then +676, 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 Nukuʻalofa and San Francisco?
Both Tonga and United States count English among their official languages, so business meetings often skip translation. Nukuʻalofa also has Tongan; San Francisco adds no other official tongue.
Do Nukuʻalofa and San Francisco drive on the same side of the road?
No. Tonga drives on the left, United States 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.