"ଦିନ" ପୃଷ୍ଠାର ସଂସ୍କରଣ‌ଗୁଡ଼ିକ ମଧ୍ୟରେ ତଫାତ

* [http://daylightchart.sourceforge.net/ Daylight Chart] shows sunrise and sunset times in a chart, for any location in the world.

* http://www.gandraxa.com/length_of_day.xml Deriving the formulas to calculate the length of day.

[[ଶ୍ରେଣୀ:ସମୟ]]