Upper Marlboro, MD to Seattle, WA: time difference
Seattle, WA is 3 h behind Upper Marlboro, MD. 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.
Upper Marlboro, MD 15:00 3:00 PM Seattle, WA 12:00 12:00 PM You –:–
15:00 3:00 PM
Eastern Daylight Time · UTC-4
☀️ 07:30 · 🌙 18:13
12:00 12:00 PM
Pacific Daylight Time · UTC-7
☀️ 07:48 · 🌙 18:00
·
−3 h
Seattle, WA is 3 h behind Upper Marlboro, MD.
When you, Upper Marlboro, MD 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
🇺🇸 Upper Marlboro, MD
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
21 9 PM 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
📍 Your time
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Time zones side by side
| Detail | 🇺🇸 Upper Marlboro, MD | 🇺🇸 Seattle, WA |
|---|---|---|
| Local time | 15:00 | 12:00 |
| Local date | Wednesday, October 28, 2026 | Wednesday, October 28, 2026 |
| Time zone | Eastern Daylight Time | Pacific Daylight Time |
| UTC offset | UTC-4 | UTC-7 |
| Offset from Upper Marlboro, MD | — | −3 h |
| IANA zone | America/New York | America/Los Angeles |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | On summer time → UTC-8, Nov 1, 01:00 |
| Sunrise | 07:30 | 07:48 |
| Sunset | 18:13 | 18:00 |
| Daylight | 10 h 42 min | 10 h 12 min |
| People on this clock | 700 | 737,015 |
Compare Upper Marlboro, MD with another city
More comparisons with Upper Marlboro, MD: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Upper Marlboro, MD and Seattle, WA: common questions
How far behind Upper Marlboro, MD, is Seattle, WA?
Seattle is 3 hours behind Upper Marlboro: UTC−7 against UTC−4.
What time is it in Seattle, WA, at the start of the working day in Upper Marlboro, MD?
The working day in Upper Marlboro starts at 9:00 AM; in Seattle it is 6:00 AM at that moment.
If it is 6:00 PM in Upper Marlboro, MD, what time is it in Seattle, WA?
At 6:00 PM in Upper Marlboro, clocks in Seattle show 3:00 PM.
When do working hours in Upper Marlboro, MD, and in Seattle, WA, overlap?
Working hours (9:00 AM–6:00 PM) overlap from 12:00 PM to 6:00 PM in Upper Marlboro, which is 9:00 AM to 3:00 PM in Seattle.
Until what time in Upper Marlboro, MD, is it still yesterday in Seattle, WA?
Before 3:00 AM in Upper Marlboro, the date in Seattle has not changed yet. From 9:00 PM in Seattle, it is already the next day in Upper Marlboro.
Is the time difference between Upper Marlboro, MD, and Seattle, WA, the same all year?
Yes. Both places switch to summer time and back on the same dates, so the gap remains 3 hours.
