Boulder, CO to Nosara: time difference
Nosara 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 14:06 2:06 PM Nosara 15:06 3:06 PM You –:–
14:06 2:06 PM
Mountain Standard Time · UTC-7
☀️ 06:37 · 🌙 16:57
15:06 3:06 PM
Central Standard Time · UTC-6
☀️ 05:35 · 🌙 17:19
·
+1 h
Nosara is 1 h ahead of Boulder, CO.
When you, Boulder, CO and Nosara 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
🇨🇷 Nosara
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 | 🇺🇸 Boulder, CO | 🇨🇷 Nosara |
|---|---|---|
| Local time | 14:06 | 15:06 |
| Local date | Thursday, November 5, 2026 | Thursday, November 5, 2026 |
| Time zone | Mountain Standard Time | Central Standard Time |
| UTC offset | UTC-7 | UTC-6 |
| Offset from Boulder, CO | — | +1 h |
| IANA zone | America/Denver | America/Costa Rica |
| Daylight saving | On standard time → UTC-6, Mar 14, 03:00 | Not observed |
| Sunrise | 06:37 | 05:35 |
| Sunset | 16:57 | 17:19 |
| Daylight | 10 h 20 min | 11 h 44 min |
| People on this clock | 106,803 | 4,912 |
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 Nosara: common questions
How many hours ahead of Boulder, CO, is Nosara?
The clocks in Nosara are 1 hour ahead of those in Boulder (UTC−6 and UTC−7).
What time is it in Nosara when it is 9:00 AM in Boulder, CO?
When it is 9:00 AM in Boulder, it is 10:00 AM in Nosara.
What time is it in Nosara at the end of the working day in Boulder, CO?
The working day in Boulder ends at 6:00 PM; in Nosara it is 7:00 PM at that moment.
Is there a time when both Boulder, CO, and Nosara are at work?
Yes: from 9:00 AM to 5:00 PM in Boulder (10:00 AM to 6:00 PM in Nosara), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Nosara compared with Boulder, CO?
The new day starts in Nosara earlier: at 11:00 PM in Boulder it is already midnight there. Until 1:00 AM in Nosara, Boulder is still on the previous day.
Is the time difference between Boulder, CO, and Nosara the same all year?
No. Only Boulder switches to summer time, so the gap changes twice a year. From March 14, 2027, Nosara and Boulder will have the same time.
