Portsmouth to Chiang Mai: time difference
Chiang Mai is 6 h ahead of Portsmouth. 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.
Portsmouth 22:16 10:16 PM Chiang Mai 04:16 4:16 AM You –:–
22:16 10:16 PM
British Summer Time · UTC+1
☀️ 07:31 · 🌙 18:10
04:16 4:16 AM
Indochina Time · UTC+7
☀️ 06:19 · 🌙 18:01
·
+6 h
Chiang Mai is 6 h ahead of Portsmouth.
When you, Portsmouth and Chiang Mai are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇬🇧 Portsmouth
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
🇹🇭 Chiang Mai
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 0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇬🇧 Portsmouth | 🇹🇭 Chiang Mai |
|---|---|---|
| Local time | 22:16 | 04:16 |
| Local date | Saturday, October 17, 2026 | Sunday, October 18, 2026 |
| Time zone | British Summer Time | Indochina Time |
| UTC offset | UTC+1 | UTC+7 |
| Offset from Portsmouth | — | +6 h |
| IANA zone | Europe/London | Asia/Bangkok |
| Daylight saving | On summer time → UTC+0, Oct 25, 01:00 | Not observed |
| Sunrise | 07:31 | 06:19 |
| Sunset | 18:10 | 18:01 |
| Daylight | 10 h 39 min | 11 h 41 min |
| People on this clock | 198,974 | 127,240 |
Compare Portsmouth with another city
More comparisons with Portsmouth: the time zones next to it and the far side of the clock.
Big time differences
Portsmouth and Chiang Mai: common questions
How many hours ahead of Portsmouth is Chiang Mai?
The clocks in Chiang Mai are 6 hours ahead of those in Portsmouth (UTC+7 and UTC+1).
What time is it in Chiang Mai when it is 9:00 AM in Portsmouth?
When it is 9:00 AM in Portsmouth, it is 3:00 PM in Chiang Mai.
What time is it in Chiang Mai when it is 6:00 PM in Portsmouth?
When it is 6:00 PM in Portsmouth, it is 12:00 AM (the next day) in Chiang Mai.
When do working hours in Portsmouth and in Chiang Mai overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 12:00 PM in Portsmouth, which is 3:00 PM to 6:00 PM in Chiang Mai.
When is it already the next day in Chiang Mai?
From 6:00 PM in Portsmouth it is already the next day in Chiang Mai. The other way round, until 6:00 AM in Chiang Mai it is still the previous day in Portsmouth.
Is the time difference between Portsmouth and Chiang Mai the same all year?
No. Only Portsmouth switches to summer time, so the gap changes twice a year. From October 25, 2026, Chiang Mai will be 7 hours ahead of Portsmouth.
