Lisbon to Tonga: time difference
Tonga is 12 h ahead of Lisbon. 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.
Lisbon 06:23 6:23 AM Tonga 18:23 6:23 PM You –:–
06:23 6:23 AM
Western European Summer Time · UTC+1
☀️ 07:41 · 🌙 19:07
18:23 6:23 PM
Tonga Standard Time · UTC+13
☀️ 06:15 · 🌙 18:42
·
+12 h
Tonga is 12 h ahead of Lisbon.
When you, Lisbon 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
🇵🇹 Lisbon
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
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 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇵🇹 Lisbon | 🇹🇴 Tonga |
|---|---|---|
| Local time | 06:23 | 18:23 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Western European Summer Time | Tonga Standard Time |
| UTC offset | UTC+1 | UTC+13 |
| Offset from Lisbon | — | +12 h |
| IANA zone | Europe/Lisbon | Pacific/Tongatapu |
| Daylight saving | On summer time → UTC+0, Oct 25, 01:00 | Not observed |
| Sunrise | 07:41 | 06:15 |
| Sunset | 19:07 | 18:42 |
| Daylight | 11 h 26 min | 12 h 27 min |
| People on this clock | 545,923 | 108,020 |
Compare Lisbon with another city
More comparisons with Lisbon: the time zones next to it and the far side of the clock.
Big time differences
Lisbon and Tonga: common questions
How far ahead of Lisbon is Tonga?
Tonga is 12 hours ahead of Lisbon: UTC+13 against UTC+1.
If it is 9:00 AM in Lisbon, what time is it in Tonga?
At 9:00 AM in Lisbon, clocks in Tonga show 9:00 PM.
What time is it in Tonga at the end of the working day in Lisbon?
The working day in Lisbon ends at 6:00 PM; in Tonga it is 6:00 AM (the next day) at that moment.
When is a good time to call Tonga from Lisbon?
Working hours (9:00 AM–6:00 PM) in Lisbon and in Tonga do not overlap. At 9:00 AM in Lisbon it is 9:00 PM in Tonga; when the working day starts in Tonga, it is 9:00 PM (the previous day) in Lisbon.
From what time in Lisbon is it tomorrow in Tonga?
Once it is 12:00 PM in Lisbon, the date in Tonga has already changed. Until 12:00 PM in Tonga, it is still the previous day in Lisbon.
Is the time difference between Lisbon and Tonga the same all year?
No. Only Lisbon switches to summer time, so the gap changes twice a year. From October 25, 2026, Tonga will be 13 hours ahead of Lisbon.
