Austin, TX to Tonga: time difference
Tonga is 18 h ahead of Austin, TX. Live clocks for both, the working hours they share, and how each one sits against your own time.
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Austin, TX 22:09 10:09 PM Tonga 16:09 4:09 PM You –:–
22:09 10:09 PM
Central Daylight Time · UTC-5
☀️ 07:30 · 🌙 19:08
16:09 4:09 PM
Tonga Standard Time · UTC+13
☀️ 06:15 · 🌙 18:42
·
+18 h
Tonga is 18 h ahead of Austin, TX.
When you, Austin, TX and Tonga are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇺🇸 Austin, TX
0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM
🇹🇴 Tonga
18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM 0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM
📍 Your time
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Time zones side by side
| Detail | 🇺🇸 Austin, TX | 🇹🇴 Tonga |
|---|---|---|
| Local time | 22:09 | 16:09 |
| Local date | Friday, October 9, 2026 | Saturday, October 10, 2026 |
| Time zone | Central Daylight Time | Tonga Standard Time |
| UTC offset | UTC-5 | UTC+13 |
| Offset from Austin, TX | — | +18 h |
| IANA zone | America/Chicago | Pacific/Tongatapu |
| Daylight saving | On summer time → UTC-6, Nov 1, 01:00 | Not observed |
| Sunrise | 07:30 | 06:15 |
| Sunset | 19:08 | 18:42 |
| Daylight | 11 h 38 min | 12 h 27 min |
| People on this clock | 974,447 | 108,020 |
Compare Austin, TX with another city
More comparisons with Austin, TX: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Austin, TX and Tonga: common questions
How far ahead of Austin, TX, is Tonga?
Tonga is 18 hours ahead of Austin: UTC+13 against UTC−5.
If it is 9:00 AM in Austin, TX, what time is it in Tonga?
At 9:00 AM in Austin, clocks in Tonga show 3:00 AM (the next day).
What time is it in Tonga at the end of the working day in Austin, TX?
The working day in Austin ends at 6:00 PM; in Tonga it is 12:00 PM (the next day) at that moment.
When is a good time to call Tonga from Austin, TX?
Between 3:00 PM and 6:00 PM in Austin – that is 9:00 AM (the next day) to 12:00 PM (the next day) in Tonga – both places are within working hours (9:00 AM–6:00 PM).
From what time in Austin, TX, is it tomorrow in Tonga?
Once it is 6:00 AM in Austin, the date in Tonga has already changed. Until 6:00 PM in Tonga, it is still the previous day in Austin.
Is the time difference between Austin, TX, and Tonga the same all year?
No. Only Austin switches to summer time, so the gap changes twice a year. From November 1, 2026, Tonga will be 19 hours ahead of Austin.
