Alton, IL to Seattle, WA: time difference
Seattle, WA is 2 h behind Alton, IL. 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.
Alton, IL 12:06 12:06 PM Seattle, WA 10:06 10:06 AM You –:–
12:06 12:06 PM
Central Daylight Time · UTC-5
☀️ 07:16 · 🌙 18:17
10:06 10:06 AM
Pacific Daylight Time · UTC-7
☀️ 07:36 · 🌙 18:13
·
−2 h
Seattle, WA is 2 h behind Alton, IL.
When you, Alton, IL 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
🇺🇸 Alton, IL
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
22 10 PM 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
📍 Your time
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Time zones side by side
| Detail | 🇺🇸 Alton, IL | 🇺🇸 Seattle, WA |
|---|---|---|
| Local time | 12:06 | 10:06 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | Central Daylight Time | Pacific Daylight Time |
| UTC offset | UTC-5 | UTC-7 |
| Offset from Alton, IL | — | −2 h |
| IANA zone | America/Chicago | America/Los Angeles |
| Daylight saving | On summer time → UTC-6, Nov 1, 01:00 | On summer time → UTC-8, Nov 1, 01:00 |
| Sunrise | 07:16 | 07:36 |
| Sunset | 18:17 | 18:13 |
| Daylight | 11 h 1 min | 10 h 37 min |
| People on this clock | 25,676 | 737,015 |
Compare Alton, IL with another city
More comparisons with Alton, IL: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Alton, IL and Seattle, WA: common questions
What is the time difference between Alton, IL, and Seattle, WA?
Seattle is 2 hours behind: it uses UTC−7, while Alton is on UTC−5.
If it is 9:00 AM in Alton, IL, what time is it in Seattle, WA?
At 9:00 AM in Alton, clocks in Seattle show 7:00 AM.
What time is it in Seattle, WA, at the end of the working day in Alton, IL?
The working day in Alton ends at 6:00 PM; in Seattle it is 4:00 PM at that moment.
When do working hours in Alton, IL, and in Seattle, WA, overlap?
Working hours (9:00 AM–6:00 PM) overlap from 11:00 AM to 6:00 PM in Alton, which is 9:00 AM to 4:00 PM in Seattle.
Until what time in Alton, IL, is it still yesterday in Seattle, WA?
Before 2:00 AM in Alton, the date in Seattle has not changed yet. From 10:00 PM in Seattle, it is already the next day in Alton.
Is the time difference between Alton, IL, and Seattle, WA, the same all year?
Yes. Both places switch to summer time and back on the same dates, so the gap remains 2 hours.
