Hi SP:
The US Navy has an astronomical calculator here:
http://aa.usno.navy.mil/data/docs/RS_OneDay.html#formbYou enter the location and the dates you're looking for. Using Google Earth, Machu Picchu is at:
72 deg, 42.7 min West longitude and
13 deg, 9.8 min South latitude
5 hours west of Greenwich mean time
Using those values, the report for August 31 is:
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U.S. Naval Observatory
Astronomical Applications Department
Sun and Moon Data for One Day
The following information is provided for Machu Picchu (longitude W72.5, latitude S13.2):
Friday
31 August 2007 Universal Time - 5h
SUN
Begin civil twilight 05:34
Sunrise 05:55
Sun transit 11:50
Sunset 17:46
End civil twilight 18:07
MOON
Moonrise 20:04 on preceding day
Moon transit 02:09
Moonset 08:10
Moonrise 21:03
Moonset 08:56 on following day
Phase of the Moon on 31 August: waning gibbous with 86% of the Moon's visible disk illuminated.
Full Moon on 28 August 2007 at 05:34 (Universal Time - 5h).
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Hope that helps.
Mike
(now imagine trying to figure this out 20 years ago...)
P.S. Peru does NOT use DST...