Calculate sunset/rise anywhere in the world

OK, this might be old news to many but I just found this link to a site that allows you to calculate the local sunset/rise

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<a href="http://www.cmpsolv.com/los/sunset.html">click here</a>

I got eroneous results. It's hard to believe that the sun didn't

rise this month until after 1pm. It's usually up by 6:30am. I

might have entered data incorrectly, though. I'll give it another

check. Below is what I got the first time:

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<tt><pre>

Sunrise/Sunset Results

Anchorage International Airport (ANC flight&FBO data aerial

photographs CAP aerial photographs street map)

Anchorage, AK (Anchorage Borough)

N61deg 10' 28" W149deg 59' 46"

US/ALASKA (GMT-0)

We couldn't find ANC as an 'Airport Name'

but found it as an 'Airport ID'

May 2002 ANC

CTS SR SS CTE M'day Len

1 12:54 13:51 06:04 07:01 09:57 16:13

2 12:51 13:48 06:07 07:05 09:57 16:19

3 12:47 13:45 06:10 07:08 09:57 16:24

4 12:44 13:43 06:12 07:12 09:57 16:30

5 12:40 13:40 06:15 07:15 09:57 16:35

6 12:36 13:37 06:18 07:19 09:57 16:41

7 12:33 13:34 06:20 07:22 09:57 16:46

8 12:29 13:31 06:23 07:26 09:57 16:51

9 12:25 13:29 06:25 07:29 09:57 16:57

10 12:22 13:26 06:28 07:33 09:57 17:02

11 12:18 13:23 06:31 07:37 09:57 17:07

12 12:14 13:21 06:33 07:40 09:56 17:13

</pre></tt>

Doh! It's not Alaska Standard Time, it's GMT! But it knows the

time zone, why can't it display the data in local time?

Washington Dulles International Airport Washington, DC

N38° 56' 41" W077° 27' 21"

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For Tue, May 28 2002 EST5EDT (GMT-4)

Local time (above TZ):17:22

Midday at: 13:07

Length of day: 14:38

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Civil Twilight Start: 05:17

Sunrise: 05:48

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Sunset: 20:26

Civil Twilight End: 20:57

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seems OK to me

I did the computation again for my area with correct results. This

time, I left the time zone setting on "Automatic." Last time, I

provided "US/Alaska."

totally understand. I probably would have messed that up if you

hadn't point it out... :-)

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cheers,

Pat, great link! now I'll put it to use. Good to hear from you again.

The camera and lens you sold me is excellent, if Pat has anything for

sale don't hesitate; he's a good honest guy!!!!

Another site with <a

href="http://aa.usno.navy.mil/data/docs/RS_OneYear.html">a similar

tool</a> is the U.S. Naval Observatory. This one doesn't require a

nearby airport, and will also calculate moonrise/set, too. (Important

for Noctilux users, I'm sure. ;-) )

I don`t do the leg work myself. I got a very handy and correct

laminated card in my bag; Sunrise compass bearing on one side,

Sunset on the other. Index card size.

Available from FotoSharp, 17650 1st Ave S no 521, Seattle WA

98148. ph 800 361-8341

.

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I usually use sunrisesunset.com. The monthly calendar printouts (under

'custom' option) are very useful for travel.

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.