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TimezonePair
Home·Seattle·Seattle × Nukuʻalofa
Prime meridian·:: UTC·

Seattle×Nukuʻalofa

United States · US
Seattle
—:—
America/Los_Angeles·
DST active
Tonga · TO
Nukuʻalofa
—:—
Pacific/Tongatapu·
No DST

Seattle is 20 hours ahead of Nukuʻalofa. Scrub a time, meet in the overlap, ship the invite — before the kettle boils.

◊ at a glance

Three numbers. The ones that decide the meeting.

01
Difference
20h ahead
Seattle vs Nukuʻalofa
02
Overlap
4h
Business hours 09:00 – 17:00
03
UTC offsets
GMT-7 / GMT+13
PDT · Tongatapu
04
Flight
11h 25m
9,285 km · great-circle, non-stop cruise
◊ the overlap

When the world meets at work.

24-hour overlap
4h shared · 13:00 – 17:00 Seattle
Seattle
—:—
0
3
6
9
12
15
18
21
Nukuʻalofa
—:—
21
0
3
6
9
12
15
18
Scrub a meeting time14:00 Seattle
Same moment in Nukuʻalofa10:00 Nukuʻalofa
◊ hour by hour

Read the day in both zones.

Share this meeting
timezonepair.com/from/seattle/to/nukuʻalofa?t=14&a=A&d=2026-05-26&dur=60
14:00 Seattle10:00 Nukuʻalofa
Full 24-hour reference
SeattleNukuʻalofa
00:00
20:00
01:00
21:00
02:00
22:00
03:00
23:00
04:00
00:00
05:00
01:00
06:00
02:00
07:00
03:00
08:00
04:00
09:00Seattle only
05:00
10:00Seattle only
06:00
11:00Seattle only
07:00
12:00Seattle only
08:00
13:00Both working
09:00
14:00Both working
10:00
15:00Both working
11:00
16:00Both working
12:00
17:00
13:00Nukuʻalofa only
18:00
14:00Nukuʻalofa only
19:00
15:00Nukuʻalofa only
20:00
16:00Nukuʻalofa only
21:00
17:00
22:00
18:00
23:00
19:00
◊ travel essentials

Crossing the border. Money, language, plugs.

Money changes hands at the border: Seattle uses the USD ($) and Nukuʻalofa uses the TOP (T$). Conversations can stay in English, which is official in both countries. Be careful behind the wheel: Seattle drives on the right, Nukuʻalofa on the left.

Seattle
Country
United States
Capital
Washington, D.C.
Currency
United States dollar (USD · $)
Language
English
Calling code
+1
Drives on
Right
Nukuʻalofa
Country
Tonga
Capital
Nuku'alofa
Currency
Tongan paʻanga (TOP · T$)
Language
English, Tongan
Calling code
+676
Drives on
Left
◊ common questions

Quick answers. Before you book the call.

What's the time difference between Seattle and Nukuʻalofa?

Seattle is 20 hours ahead of Nukuʻalofa. Seattle runs on GMT-7 and Nukuʻalofa on GMT+13. 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 Seattle from Nukuʻalofa?

About 9,285 km as the crow flies (great-circle distance). A non-stop commercial flight cruises that in roughly 11h 25m, 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 Seattle and Nukuʻalofa use?

Seattle uses the United States dollar (USD, $); Nukuʻalofa uses the Tongan paʻanga (TOP, T$). 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 Seattle from Nukuʻalofa?

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 Seattle and Nukuʻalofa?

Both United States and Tonga count English among their official languages, so business meetings often skip translation. Seattle also has no other official tongue; Nukuʻalofa adds Tongan.

Do Seattle and Nukuʻalofa drive on the same side of the road?

No. United States drives on the right, Tonga 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.

◊ keep going

One pair down. 299 cities to go.

Every pair in 300 cities runs the same clocks, the same overlap, the same one-click invite. Pick another.

SEATTLE · America/Los_Angeles
GMT-7 · 47.61°, -122.33°

NUKUʻALOFA · Pacific/Tongatapu
GMT+13 · -21.14°, -175.21°

4h shared · 20h ahead