East Coast

East Coast
What is the real time difference between the sun rising on the east coast and the west coast?

Taking into consideration time zones, how many minutes difference is there from when the East Coast of the US and the West Coast sees the sun rise?

I'm wondering that if we had no time zones, what is the "lag time" for sunrise (or sunset, don't care) due to the earth's rotation from the east coast to the west coast?

Latitude can make a BIG difference in sunrise times as well. It's a FOUR hour difference, not three. Here's the proof:

"...U.S. Naval Observatory
Astronomical Applications Department

Sun and Moon Data for One Day
The following information is provided for Washington, District of Columbia (longitude W77.0, latitude N38.9):

Saturday
1 August 2009 Eastern Daylight Time

SUN
Begin civil twilight 5:40 a.m.
Sunrise 6:09 a.m. [Eastern Daylight Time]
Sun transit 1:14 p.m.
Sunset 8:19 p.m.
End civil twilight 8:49 p.m.

MOON
Moonrise 4:45 p.m. on preceding day
Moonset 1:55 a.m.
Moonrise 5:37 p.m.
Moon transit 10:12 p.m.
Moonset 2:47 a.m. on following day

Phase of the Moon on 1 August: waxing gibbous with 84% of the Moon's visible disk illuminated.

First quarter Moon on 28 July 2009 at 6:00 p.m. Eastern Daylight Time.

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Census Bureau map of Washington area

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"...U.S. Naval Observatory
Astronomical Applications Department

Sun and Moon Data for One Day
The following information is provided for Los Angeles, Los Angeles County, California (longitude W118.4, latitude N34.1):

Saturday
1 August 2009 Pacific Daylight Time

SUN
Begin civil twilight 5:38 a.m.
Sunrise 6:05 a.m. [Pacific Daylight Time]
Sun transit 1:00 p.m.
Sunset 7:54 p.m.
End civil twilight 8:21 p.m.

MOON
Moonrise 4:20 p.m. on preceding day
Moonset 2:03 a.m.
Moonrise 5:12 p.m.
Moon transit 10:03 p.m.
Moonset 2:55 a.m. on following day

Phase of the Moon on 1 August: waxing gibbous with 85% of the Moon's visible disk illuminated.

First quarter Moon on 28 July 2009 at 3:00 p.m. Pacific Daylight Time.

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Census Bureau map of Los Angeles area

Back to form..."

"U.S. Naval Observatory
Astronomical Applications Department

Sun and Moon Data for One Day
The following information is provided for Seattle, King County, Washington (longitude W122.3, latitude N47.6):

Saturday
1 August 2009 Pacific Daylight Time

SUN
Begin civil twilight 5:11 a.m.
Sunrise 5:47 a.m.
Sun transit 1:16 p.m.
Sunset 8:43 p.m.
End civil twilight 9:19 p.m.

MOON
Moonrise 5:32 p.m. on preceding day
Moonset 1:24 a.m.
Moonrise 6:23 p.m.
Moon transit 10:19 p.m.
Moonset 2:17 a.m. on following day

Phase of the Moon on 1 August: waxing gibbous with 85% of the Moon's visible disk illuminated.

First quarter Moon on 28 July 2009 at 3:00 p.m. Pacific Daylight Time.

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Census Bureau map of Seattle area..."

http://www.worldtimezone.com/datetime.htm (you can change the clock from 24 hour to 12 hour, Just left click on the hyper link at the top of the page)

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