Naperville, IL to Chiang Mai: time difference
Chiang Mai is 12 h ahead of Naperville, IL. 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.
Naperville, IL 14:37 2:37 PM Chiang Mai 02:37 2:37 AM You –:–
14:37 2:37 PM
Central Daylight Time · UTC-5
☀️ 07:11 · 🌙 18:05
02:37 2:37 AM
Indochina Time · UTC+7
☀️ 06:20 · 🌙 17:58
·
+12 h
Chiang Mai is 12 h ahead of Naperville, IL.
When you, Naperville, IL 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
🇺🇸 Naperville, IL
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
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
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Time zones side by side
| Detail | 🇺🇸 Naperville, IL | 🇹🇭 Chiang Mai |
|---|---|---|
| Local time | 14:37 | 02:37 |
| Local date | Tuesday, October 20, 2026 | Wednesday, October 21, 2026 |
| Time zone | Central Daylight Time | Indochina Time |
| UTC offset | UTC-5 | UTC+7 |
| Offset from Naperville, IL | — | +12 h |
| IANA zone | America/Chicago | Asia/Bangkok |
| Daylight saving | On summer time → UTC-6, Nov 1, 01:00 | Not observed |
| Sunrise | 07:11 | 06:20 |
| Sunset | 18:05 | 17:58 |
| Daylight | 10 h 54 min | 11 h 38 min |
| People on this clock | 149,540 | 127,240 |
Compare Naperville, IL with another city
More comparisons with Naperville, IL: the time zones next to it and the far side of the clock.
Nearby time zones
Naperville, IL and Chiang Mai: common questions
What is the time difference between Naperville, IL, and Chiang Mai?
Chiang Mai is 12 hours ahead: it uses UTC+7, while Naperville is on UTC−5.
What time is it in Chiang Mai at the start of the working day in Naperville, IL?
The working day in Naperville starts at 9:00 AM; in Chiang Mai it is 9:00 PM at that moment.
What time is it in Chiang Mai when it is 6:00 PM in Naperville, IL?
When it is 6:00 PM in Naperville, it is 6:00 AM (the next day) in Chiang Mai.
Is there a time when both Naperville, IL, and Chiang Mai are at work?
No, the working days (9:00 AM–6:00 PM) do not overlap. When the day starts in Naperville at 9:00 AM, it is 9:00 PM in Chiang Mai; the day in Chiang Mai starts at 9:00 PM (the previous day) in Naperville time.
When does the date change in Chiang Mai compared with Naperville, IL?
The new day starts in Chiang Mai earlier: at 12:00 PM in Naperville it is already midnight there. Until 12:00 PM in Chiang Mai, Naperville is still on the previous day.
Does the time gap between Naperville, IL, and Chiang Mai change during the year?
Yes – daylight saving time is used in Naperville but not in Chiang Mai. From November 1, 2026, Chiang Mai will be 13 hours ahead of Naperville.
