Boulder, CO to Austin, TX: time difference
Austin, TX is 1 h ahead of Boulder, CO. 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.
Boulder, CO 08:16 8:16 AM Austin, TX 09:16 9:16 AM You –:–
08:16 8:16 AM
Mountain Daylight Time · UTC-6
☀️ 07:19 · 🌙 18:17
09:16 9:16 AM
Central Daylight Time · UTC-5
☀️ 07:37 · 🌙 18:56
·
+1 h
Austin, TX is 1 h ahead of Boulder, CO.
When you, Boulder, CO and Austin, 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
🇺🇸 Boulder, CO
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
🇺🇸 Austin, 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
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Time zones side by side
| Detail | 🇺🇸 Boulder, CO | 🇺🇸 Austin, TX |
|---|---|---|
| Local time | 08:16 | 09:16 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | Mountain Daylight Time | Central Daylight Time |
| UTC offset | UTC-6 | UTC-5 |
| Offset from Boulder, CO | — | +1 h |
| IANA zone | America/Denver | America/Chicago |
| Daylight saving | On summer time → UTC-7, Nov 1, 01:00 | On summer time → UTC-6, Nov 1, 01:00 |
| Sunrise | 07:19 | 07:37 |
| Sunset | 18:17 | 18:56 |
| Daylight | 10 h 58 min | 11 h 19 min |
| People on this clock | 106,803 | 974,447 |
Compare Boulder, CO with another city
More comparisons with Boulder, CO: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Boulder, CO and Austin, TX: common questions
How far ahead of Boulder, CO, is Austin, TX?
Austin is 1 hour ahead of Boulder: UTC−5 against UTC−6.
What time is it in Austin, TX, when it is 9:00 AM in Boulder, CO?
When it is 9:00 AM in Boulder, it is 10:00 AM in Austin.
If it is 6:00 PM in Boulder, CO, what time is it in Austin, TX?
At 6:00 PM in Boulder, clocks in Austin show 7:00 PM.
Is there a time when both Boulder, CO, and Austin, TX, are at work?
Yes: from 9:00 AM to 5:00 PM in Boulder (10:00 AM to 6:00 PM in Austin), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Austin, TX, compared with Boulder, CO?
The new day starts in Austin earlier: at 11:00 PM in Boulder it is already midnight there. Until 1:00 AM in Austin, Boulder is still on the previous day.
Is the time difference between Boulder, CO, and Austin, TX, the same all year?
Yes. Both places switch to summer time and back on the same dates, so the gap remains 1 hour.
