San Jose to Round Rock, TX: time difference
Round Rock, TX 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 10:05 10:05 AM Round Rock, TX 11:05 11:05 AM You –:–
10:05 10:05 AM
Central Standard Time · UTC-6
☀️ 05:26 · 🌙 17:19
11:05 11:05 AM
Central Daylight Time · UTC-5
☀️ 07:36 · 🌙 18:57
·
+1 h
Round Rock, TX is 1 h ahead of San Jose.
When you, San Jose and Round Rock, TX 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
🇺🇸 Round Rock, TX
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
- Both working
- Right now
Time zones side by side
| Detail | 🇨🇷 San Jose | 🇺🇸 Round Rock, TX |
|---|---|---|
| Local time | 10:05 | 11:05 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 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 | 07:36 |
| Sunset | 17:19 | 18:57 |
| Daylight | 11 h 53 min | 11 h 22 min |
| People on this clock | 342,188 | 119,468 |
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 Round Rock, TX: common questions
How far ahead of San Jose is Round Rock, TX?
Round Rock is 1 hour ahead of San Jose: UTC−5 against UTC−6.
If it is 9:00 AM in San Jose, what time is it in Round Rock, TX?
At 9:00 AM in San Jose, clocks in Round Rock show 10:00 AM.
What time is it in Round Rock, TX, at the end of the working day in San Jose?
The working day in San Jose ends at 6:00 PM; in Round Rock it is 7:00 PM at that moment.
Is there a time when both San Jose and Round Rock, TX, are at work?
Yes: from 9:00 AM to 5:00 PM in San Jose (10:00 AM to 6:00 PM in Round Rock), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Round Rock, TX, compared with San Jose?
The new day starts in Round Rock earlier: at 11:00 PM in San Jose it is already midnight there. Until 1:00 AM in Round Rock, San Jose is still on the previous day.
Is the time difference between San Jose and Round Rock, TX, the same all year?
No. Only Round Rock switches to summer time, so the gap changes twice a year. From November 1, 2026, Round Rock and San Jose will have the same time.
