Da Nang to Helena, MT: time difference
Helena, MT 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 13:35 1:35 PM Helena, MT 00:35 12:35 AM You –:–
13:35 1:35 PM
Indochina Time · UTC+7
☀️ 05:39 · 🌙 17:31
00:35 12:35 AM
Mountain Daylight Time · UTC-6
☀️ 07:38 · 🌙 18:54
·
−13 h
Helena, MT is 13 h behind Da Nang.
When you, Da Nang and Helena, MT 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
🇺🇸 Helena, MT
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
- Both working
- Right now
Time zones side by side
| Detail | 🇻🇳 Da Nang | 🇺🇸 Helena, MT |
|---|---|---|
| Local time | 13:35 | 00:35 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 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 | 05:39 | 07:38 |
| Sunset | 17:31 | 18:54 |
| Daylight | 11 h 52 min | 11 h 16 min |
| People on this clock | 1,245,200 | 32,091 |
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 Helena, MT: common questions
How many hours behind Da Nang is Helena, MT?
The clocks in Helena are 13 hours behind those in Da Nang (UTC−6 and UTC+7).
What time is it in Helena, MT, at the start of the working day in Da Nang?
The working day in Da Nang starts at 9:00 AM; in Helena it is 8:00 PM (the previous day) at that moment.
What time is it in Helena, MT, at the end of the working day in Da Nang?
The working day in Da Nang ends at 6:00 PM; in Helena it is 5:00 AM at that moment.
When is a good time to call Helena, MT, from Da Nang?
Working hours (9:00 AM–6:00 PM) in Da Nang and in Helena do not overlap. At 9:00 AM in Da Nang it is 8:00 PM (the previous day) in Helena; when the working day starts in Helena, it is 10:00 PM in Da Nang.
Until what time in Da Nang is it still yesterday in Helena, MT?
Before 1:00 PM in Da Nang, the date in Helena has not changed yet. From 11:00 AM in Helena, it is already the next day in Da Nang.
Does the time difference between Da Nang and Helena, MT, change?
Yes. The clocks change only in Helena. From November 1, 2026, Helena will be 14 hours behind Da Nang.
