Chiang Mai to Portsmouth: time difference
Portsmouth is 6 h behind Chiang Mai. Live clocks for both, the working hours they share, and how each one sits against your own time.
−6 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Chiang Mai 06:09 6:09 AM Portsmouth 00:09 12:09 AM You –:–
06:09 6:09 AM
Indochina Time · UTC+7
☀️ 06:19 · 🌙 18:01
00:09 12:09 AM
British Summer Time · UTC+1
☀️ 07:31 · 🌙 18:10
·
−6 h
Portsmouth is 6 h behind Chiang Mai.
When you, Chiang Mai and Portsmouth are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇹🇭 Chiang Mai
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
🇬🇧 Portsmouth
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
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇹🇭 Chiang Mai | 🇬🇧 Portsmouth |
|---|---|---|
| Local time | 06:09 | 00:09 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Indochina Time | British Summer Time |
| UTC offset | UTC+7 | UTC+1 |
| Offset from Chiang Mai | — | −6 h |
| IANA zone | Asia/Bangkok | Europe/London |
| Daylight saving | Not observed | On summer time → UTC+0, Oct 25, 01:00 |
| Sunrise | 06:19 | 07:31 |
| Sunset | 18:01 | 18:10 |
| Daylight | 11 h 41 min | 10 h 39 min |
| People on this clock | 127,240 | 198,974 |
Compare Chiang Mai with another city
More comparisons with Chiang Mai: the time zones next to it and the far side of the clock.
Big time differences
Chiang Mai and Portsmouth: common questions
What is the time difference between Chiang Mai and Portsmouth?
Portsmouth is 6 hours behind: it uses UTC+1, while Chiang Mai is on UTC+7.
What time is it in Portsmouth at the start of the working day in Chiang Mai?
The working day in Chiang Mai starts at 9:00 AM; in Portsmouth it is 3:00 AM at that moment.
What time is it in Portsmouth when it is 6:00 PM in Chiang Mai?
When it is 6:00 PM in Chiang Mai, it is 12:00 PM in Portsmouth.
Is there a time when both Chiang Mai and Portsmouth are at work?
Yes: from 3:00 PM to 6:00 PM in Chiang Mai (9:00 AM to 12:00 PM in Portsmouth), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Portsmouth compared with Chiang Mai?
The new day starts in Portsmouth later: until 6:00 AM in Chiang Mai, it is still the previous day there. From 6:00 PM in Portsmouth, Chiang Mai is already on the next day.
Is the time difference between Chiang Mai and Portsmouth the same all year?
No. Only Portsmouth switches to summer time, so the gap changes twice a year. From October 25, 2026, Portsmouth will be 7 hours behind Chiang Mai.
