Quito to San Mateo, CA: time difference
San Mateo, CA is 2 h behind Quito. 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.
Quito 11:50 11:50 AM San Mateo, CA 09:50 9:50 AM You –:–
11:50 11:50 AM
Ecuador Time · UTC-5
☀️ 05:56 · 🌙 18:03
09:50 9:50 AM
Pacific Daylight Time · UTC-7
☀️ 07:21 · 🌙 18:29
·
−2 h
San Mateo, CA is 2 h behind Quito.
When you, Quito 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
🇪🇨 Quito
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
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 18 6 PM 19 7 PM 20 8 PM 21 9 PM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
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Time zones side by side
| Detail | 🇪🇨 Quito | 🇺🇸 San Mateo, CA |
|---|---|---|
| Local time | 11:50 | 09:50 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Ecuador Time | Pacific Daylight Time |
| UTC offset | UTC-5 | UTC-7 |
| Offset from Quito | — | −2 h |
| IANA zone | America/Guayaquil | America/Los Angeles |
| Daylight saving | Not observed | On summer time → UTC-8, Nov 1, 01:00 |
| Sunrise | 05:56 | 07:21 |
| Sunset | 18:03 | 18:29 |
| Daylight | 12 h 7 min | 11 h 8 min |
| People on this clock | 2,671,191 | 103,536 |
Compare Quito with another city
More comparisons with Quito: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Quito and San Mateo, CA: common questions
How far behind Quito is San Mateo, CA?
San Mateo is 2 hours behind Quito: UTC−7 against UTC−5.
What time is it in San Mateo, CA, when it is 9:00 AM in Quito?
When it is 9:00 AM in Quito, it is 7:00 AM in San Mateo.
If it is 6:00 PM in Quito, what time is it in San Mateo, CA?
At 6:00 PM in Quito, clocks in San Mateo show 4:00 PM.
When do working hours in Quito and in San Mateo, CA, overlap?
Working hours (9:00 AM–6:00 PM) overlap from 11:00 AM to 6:00 PM in Quito, which is 9:00 AM to 4:00 PM in San Mateo.
Until what time in Quito is it still yesterday in San Mateo, CA?
Before 2:00 AM in Quito, the date in San Mateo has not changed yet. From 10:00 PM in San Mateo, it is already the next day in Quito.
Is the time difference between Quito and San Mateo, CA, the same all year?
No. Only San Mateo switches to summer time, so the gap changes twice a year. From November 1, 2026, San Mateo will be 3 hours behind Quito.
