Da Nang to San Mateo, CA: time difference
San Mateo, CA is 14 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 23:00 11:00 PM San Mateo, CA 09:00 9:00 AM You –:–
23:00 11:00 PM
Indochina Time · UTC+7
☀️ 05:41 · 🌙 17:26
09:00 9:00 AM
Pacific Daylight Time · UTC-7
☀️ 07:21 · 🌙 18:29
·
−14 h
San Mateo, CA is 14 h behind Da Nang.
When you, Da Nang and San Mateo, CA 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
🇺🇸 San Mateo, CA
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 6 6 AM 7 7 AM 8 8 AM 9 9 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇻🇳 Da Nang | 🇺🇸 San Mateo, CA |
|---|---|---|
| Local time | 23:00 | 09:00 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Indochina Time | Pacific Daylight Time |
| UTC offset | UTC+7 | UTC-7 |
| Offset from Da Nang | — | −14 h |
| IANA zone | Asia/Ho Chi Minh | America/Los Angeles |
| Daylight saving | Not observed | On summer time → UTC-8, Nov 1, 01:00 |
| Sunrise | 05:41 | 07:21 |
| Sunset | 17:26 | 18:29 |
| Daylight | 11 h 45 min | 11 h 8 min |
| People on this clock | 1,245,200 | 103,536 |
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 San Mateo, CA: common questions
What is the time difference between Da Nang and San Mateo, CA?
San Mateo is 14 hours behind: it uses UTC−7, while Da Nang is on UTC+7.
What time is it in San Mateo, CA, at the start of the working day in Da Nang?
The working day in Da Nang starts at 9:00 AM; in San Mateo it is 7:00 PM (the previous day) at that moment.
If it is 6:00 PM in Da Nang, what time is it in San Mateo, CA?
At 6:00 PM in Da Nang, clocks in San Mateo show 4:00 AM.
When is a good time to call San Mateo, CA, from Da Nang?
Working hours (9:00 AM–6:00 PM) in Da Nang and in San Mateo do not overlap. At 9:00 AM in Da Nang it is 7:00 PM (the previous day) in San Mateo; when the working day starts in San Mateo, it is 11:00 PM in Da Nang.
Until what time in Da Nang is it still yesterday in San Mateo, CA?
Before 2:00 PM in Da Nang, the date in San Mateo has not changed yet. From 10:00 AM in San Mateo, it is already the next day in Da Nang.
Does the time difference between Da Nang and San Mateo, CA, change?
Yes. The clocks change only in San Mateo. From November 1, 2026, San Mateo will be 15 hours behind Da Nang.
