Da Nang to Boulder, CO: time difference
Boulder, CO is 13 h behind Da Nang. 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.
Da Nang 23:57 11:57 PM Boulder, CO 10:57 10:57 AM You –:–
23:57 11:57 PM
Indochina Time · UTC+7
☀️ 05:41 · 🌙 17:24
10:57 10:57 AM
Mountain Daylight Time · UTC-6
☀️ 07:19 · 🌙 18:17
·
−13 h
Boulder, CO is 13 h behind Da Nang.
When you, Da Nang and Boulder, CO are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇻🇳 Da Nang
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
🇺🇸 Boulder, CO
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 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
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Time zones side by side
| Detail | 🇻🇳 Da Nang | 🇺🇸 Boulder, CO |
|---|---|---|
| Local time | 23:57 | 10:57 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | Indochina Time | Mountain Daylight Time |
| UTC offset | UTC+7 | UTC-6 |
| Offset from Da Nang | — | −13 h |
| IANA zone | Asia/Ho Chi Minh | America/Denver |
| Daylight saving | Not observed | On summer time → UTC-7, Nov 1, 01:00 |
| Sunrise | 05:41 | 07:19 |
| Sunset | 17:24 | 18:17 |
| Daylight | 11 h 43 min | 10 h 58 min |
| People on this clock | 1,245,200 | 106,803 |
Compare Da Nang with another city
More comparisons with Da Nang: the time zones next to it and the far side of the clock.
Big time differences
Da Nang and Boulder, CO: common questions
How far behind Da Nang is Boulder, CO?
Boulder is 13 hours behind Da Nang: UTC−6 against UTC+7.
What time is it in Boulder, CO, when it is 9:00 AM in Da Nang?
When it is 9:00 AM in Da Nang, it is 8:00 PM (the previous day) in Boulder.
What time is it in Boulder, CO, when it is 6:00 PM in Da Nang?
When it is 6:00 PM in Da Nang, it is 5:00 AM in Boulder.
When do working hours in Da Nang and in Boulder, CO, overlap?
They don't: there are no shared working hours. The start of the day in Da Nang (9:00 AM) is 8:00 PM (the previous day) in Boulder, and the start of the day in Boulder is 10:00 PM in Da Nang.
When is it still the previous day in Boulder, CO?
Until 1:00 PM in Da Nang it is still the previous day in Boulder. The other way round, from 11:00 AM in Boulder it is already the next day in Da Nang.
Does the time difference between Da Nang and Boulder, CO, change?
Yes. The clocks change only in Boulder. From November 1, 2026, Boulder will be 14 hours behind Da Nang.
