Toronto to San Mateo, CA: time difference
San Mateo, CA is 3 h behind Toronto. 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.
Toronto 18:32 6:32 PM San Mateo, CA 15:32 3:32 PM You –:–
18:32 6:32 PM
Eastern Daylight Time · UTC-4
☀️ 07:36 · 🌙 18:31
15:32 3:32 PM
Pacific Daylight Time · UTC-7
☀️ 07:21 · 🌙 18:29
·
−3 h
San Mateo, CA is 3 h behind Toronto.
When you, Toronto 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
🇨🇦 Toronto
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
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 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
📍 Your time
- Asleep
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- Working hours
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Time zones side by side
| Detail | 🇨🇦 Toronto | 🇺🇸 San Mateo, CA |
|---|---|---|
| Local time | 18:32 | 15:32 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Eastern Daylight Time | Pacific Daylight Time |
| UTC offset | UTC-4 | UTC-7 |
| Offset from Toronto | — | −3 h |
| IANA zone | America/Toronto | America/Los Angeles |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | On summer time → UTC-8, Nov 1, 01:00 |
| Sunrise | 07:36 | 07:21 |
| Sunset | 18:31 | 18:29 |
| Daylight | 10 h 55 min | 11 h 8 min |
| People on this clock | 2,731,571 | 103,536 |
Compare Toronto with another city
More comparisons with Toronto: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Toronto and San Mateo, CA: common questions
How far behind Toronto is San Mateo, CA?
San Mateo is 3 hours behind Toronto: UTC−7 against UTC−4.
What time is it in San Mateo, CA, at the start of the working day in Toronto?
The working day in Toronto starts at 9:00 AM; in San Mateo it is 6:00 AM at that moment.
What time is it in San Mateo, CA, when it is 6:00 PM in Toronto?
When it is 6:00 PM in Toronto, it is 3:00 PM in San Mateo.
When do working hours in Toronto and in San Mateo, CA, overlap?
Working hours (9:00 AM–6:00 PM) overlap from 12:00 PM to 6:00 PM in Toronto, which is 9:00 AM to 3:00 PM in San Mateo.
When does the date change in San Mateo, CA, compared with Toronto?
The new day starts in San Mateo later: until 3:00 AM in Toronto, it is still the previous day there. From 9:00 PM in San Mateo, Toronto is already on the next day.
Is the time difference between Toronto and San Mateo, CA, the same all year?
Yes. Both places switch to summer time and back on the same dates, so the gap remains 3 hours.
