San Jose to O'Fallon, MO: time difference
O'Fallon, MO is 1 h ahead of San Jose. 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.
San Jose 18:58 6:58 PM O'Fallon, MO 19:58 7:58 PM You –:–
18:58 6:58 PM
Central Standard Time · UTC-6
☀️ 05:26 · 🌙 17:17
19:58 7:58 PM
Central Daylight Time · UTC-5
☀️ 07:19 · 🌙 18:17
·
+1 h
O'Fallon, MO is 1 h ahead of San Jose.
When you, San Jose and O'Fallon, MO are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇨🇷 San Jose
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
🇺🇸 O'Fallon, MO
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 0 12 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
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Time zones side by side
| Detail | 🇨🇷 San Jose | 🇺🇸 O'Fallon, MO |
|---|---|---|
| Local time | 18:58 | 19:58 |
| Local date | Wednesday, October 21, 2026 | Wednesday, October 21, 2026 |
| Time zone | Central Standard Time | Central Daylight Time |
| UTC offset | UTC-6 | UTC-5 |
| Offset from San Jose | — | +1 h |
| IANA zone | America/Costa Rica | America/Chicago |
| Daylight saving | Not observed | On summer time → UTC-6, Nov 1, 01:00 |
| Sunrise | 05:26 | 07:19 |
| Sunset | 17:17 | 18:17 |
| Daylight | 11 h 52 min | 10 h 59 min |
| People on this clock | 342,188 | 94,074 |
Compare San Jose with another city
More comparisons with San Jose: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
San Jose and O'Fallon, MO: common questions
How far ahead of San Jose is O'Fallon, MO?
O'Fallon is 1 hour ahead of San Jose: UTC−5 against UTC−6.
What time is it in O'Fallon, MO, when it is 9:00 AM in San Jose?
When it is 9:00 AM in San Jose, it is 10:00 AM in O'Fallon.
What time is it in O'Fallon, MO, at the end of the working day in San Jose?
The working day in San Jose ends at 6:00 PM; in O'Fallon it is 7:00 PM at that moment.
When is a good time to call O'Fallon, MO, from San Jose?
Between 9:00 AM and 5:00 PM in San Jose – that is 10:00 AM to 6:00 PM in O'Fallon – both places are within working hours (9:00 AM–6:00 PM).
When does the date change in O'Fallon, MO, compared with San Jose?
The new day starts in O'Fallon earlier: at 11:00 PM in San Jose it is already midnight there. Until 1:00 AM in O'Fallon, San Jose is still on the previous day.
Is the time difference between San Jose and O'Fallon, MO, the same all year?
No. Only O'Fallon switches to summer time, so the gap changes twice a year. From November 1, 2026, O'Fallon and San Jose will have the same time.
