Centennial, CO to Seattle, WA: time difference
Seattle, WA is 1 h behind Centennial, 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.
Centennial, CO 16:41 4:41 PM Seattle, WA 15:41 3:41 PM You –:–
16:41 4:41 PM
Mountain Daylight Time · UTC-6
☀️ 07:15 · 🌙 18:15
15:41 3:41 PM
Pacific Daylight Time · UTC-7
☀️ 07:36 · 🌙 18:13
·
−1 h
Seattle, WA is 1 h behind Centennial, CO.
When you, Centennial, CO and Seattle, WA are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇺🇸 Centennial, 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
🇺🇸 Seattle, WA
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 21 9 PM 22 10 PM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇺🇸 Centennial, CO | 🇺🇸 Seattle, WA |
|---|---|---|
| Local time | 16:41 | 15:41 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | Mountain Daylight Time | Pacific Daylight Time |
| UTC offset | UTC-6 | UTC-7 |
| Offset from Centennial, CO | — | −1 h |
| IANA zone | America/Denver | America/Los Angeles |
| Daylight saving | On summer time → UTC-7, Nov 1, 01:00 | On summer time → UTC-8, Nov 1, 01:00 |
| Sunrise | 07:15 | 07:36 |
| Sunset | 18:15 | 18:13 |
| Daylight | 10 h 59 min | 10 h 37 min |
| People on this clock | 109,741 | 737,015 |
Compare Centennial, CO with another city
More comparisons with Centennial, CO: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Centennial, CO and Seattle, WA: common questions
How many hours behind Centennial, CO, is Seattle, WA?
The clocks in Seattle are 1 hour behind those in Centennial (UTC−7 and UTC−6).
What time is it in Seattle, WA, at the start of the working day in Centennial, CO?
The working day in Centennial starts at 9:00 AM; in Seattle it is 8:00 AM at that moment.
What time is it in Seattle, WA, at the end of the working day in Centennial, CO?
The working day in Centennial ends at 6:00 PM; in Seattle it is 5:00 PM at that moment.
When is a good time to call Seattle, WA, from Centennial, CO?
Between 10:00 AM and 6:00 PM in Centennial – that is 9:00 AM to 5:00 PM in Seattle – both places are within working hours (9:00 AM–6:00 PM).
When does the date change in Seattle, WA, compared with Centennial, CO?
The new day starts in Seattle later: until 1:00 AM in Centennial, it is still the previous day there. From 11:00 PM in Seattle, Centennial is already on the next day.
Does the time difference between Centennial, CO, and Seattle, WA, change?
No. The clocks in Centennial and in Seattle change on the same dates, so the difference stays 1 hour.
