This shareware Javascript program calculates solar angles based on location, date, and time. Instructions - Notes - FAQ - Mailing list - Shareware - Comment - SusDesign home Latitude    North   South Longitude    East   West Date January February March April May June July August September October November December 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 Time (eg, 12:34) AM PM 24 hr   Clock Time Solar Time Time Zone Z (GMT) A (GMT + 1:00) B (GMT + 2:00) C (GMT + 3:00) C* (GMT + 3:30) D (GMT + 4:00) D* (GMT + 4:30) E (GMT + 5:00) E* (GMT + 5:30) F (GMT + 6:00) F* (GMT + 6:30) G (GMT + 7:00) H (GMT + 8:00) I (GMT + 9:00) I* (GMT + 9:30) K (GMT + 10:00) K* (GMT + 10:30) L (GMT + 11:00) L* (GMT + 11:30) M (GMT + 12:00) M* (GMT + 13:00) N (GMT - 1:00) O (GMT - 2:00) P (GMT - 3:00) P* (GMT - 3:30) Q (GMT - 4:00) R (GMT - 5:00) US/Eastern S (GMT - 6:00) US/Central T (GMT - 7:00) US/Mountain U (GMT - 8:00) US/Pacific U* (GMT - 8:30) V (GMT - 9:00) US/Yukon V* (GMT - 9:30) W (GMT - 10:00) US/Hawaii X (GMT - 11:00) Y (GMT - 12:00) Daylight Savings Yes / No Declination degrees (positive is Northern Hemisphere) Equation of Time minutes Clock Time (+/- indicates next/previous day) Local Solar Time (+/- indicates next/previous day) Hour Angle degrees (positive indicates AM) Altitude Angle degrees Azimuth Angle degrees (positive indicates east of south) Time of Sunrise (clock time) Time of Sunset (clock time)

©1999 Christopher Gronbeck

See:

Questions:

• fredflyn@pacbell.net asks:

  As an architect I would like to find a sunangle program which I can import into an autocad drawing in aerial or plan view to overlay (transparent) a home plan design to show clients the actual path of the sun for their location. Is there such a program ?

Comments:

• form does not work. James Newton replies: True... Anyone care to fix it?