Seattle, WA to Chattanooga, TN: time difference
Chattanooga, TN is 3 h ahead of Seattle, WA. 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.
Seattle, WA 12:36 12:36 PM Chattanooga, TN 15:36 3:36 PM You –:–
12:36 12:36 PM
Pacific Daylight Time · UTC-7
☀️ 07:36 · 🌙 18:13
15:36 3:36 PM
Eastern Daylight Time · UTC-4
☀️ 07:52 · 🌙 19:01
·
+3 h
Chattanooga, TN is 3 h ahead of Seattle, WA.
When you, Seattle, WA and Chattanooga, TN are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇺🇸 Seattle, WA
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
🇺🇸 Chattanooga, TN
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 1 1 AM 2 2 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇺🇸 Seattle, WA | 🇺🇸 Chattanooga, TN |
|---|---|---|
| Local time | 12:36 | 15:36 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | Pacific Daylight Time | Eastern Daylight Time |
| UTC offset | UTC-7 | UTC-4 |
| Offset from Seattle, WA | — | +3 h |
| IANA zone | America/Los Angeles | America/New York |
| Daylight saving | On summer time → UTC-8, Nov 1, 01:00 | On summer time → UTC-5, Nov 1, 01:00 |
| Sunrise | 07:36 | 07:52 |
| Sunset | 18:13 | 19:01 |
| Daylight | 10 h 37 min | 11 h 9 min |
| People on this clock | 737,015 | 176,588 |
Compare Seattle, WA with another city
More comparisons with Seattle, WA: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Seattle, WA and Chattanooga, TN: common questions
How many hours ahead of Seattle, WA, is Chattanooga, TN?
The clocks in Chattanooga are 3 hours ahead of those in Seattle (UTC−4 and UTC−7).
If it is 9:00 AM in Seattle, WA, what time is it in Chattanooga, TN?
At 9:00 AM in Seattle, clocks in Chattanooga show 12:00 PM.
What time is it in Chattanooga, TN, at the end of the working day in Seattle, WA?
The working day in Seattle ends at 6:00 PM; in Chattanooga it is 9:00 PM at that moment.
When is a good time to call Chattanooga, TN, from Seattle, WA?
Between 9:00 AM and 3:00 PM in Seattle – that is 12:00 PM to 6:00 PM in Chattanooga – both places are within working hours (9:00 AM–6:00 PM).
From what time in Seattle, WA, is it tomorrow in Chattanooga, TN?
Once it is 9:00 PM in Seattle, the date in Chattanooga has already changed. Until 3:00 AM in Chattanooga, it is still the previous day in Seattle.
Does the time difference between Seattle, WA, and Chattanooga, TN, change?
No. The clocks in Seattle and in Chattanooga change on the same dates, so the difference stays 3 hours.
