Welcome to the Sun Rise and Sun Set Calculation and Display Page

This input page is picky and requires that all fields be input and no defaults used.
Select 'show the plot' to see a graph chart rather than a Calendar of Sun Rise/Set Times.

This will display data for 1 year

Enter the global location below    (click this map's city for a lat/long)
 North   South  Latitude                   East     West    Longitude   
Year  (must be valid for checkdate) 
The following selection is to determine when the Sun is really up or down
echo "Zenith Twilight Adjustment 

All Systems Go

(Time Zone order) - see link above for map   
Time Zone

Yes, Show the Altitude   Yes, Only show the Plot

Note: Submit button below is disabled until you enter a latitude, longitude, year and select the time zone

(Click the Button above when Form fields are completed)