how can i develop a software for julian calendar?

Question

how can i develop a software for julian or gregorian calendar?
if some one needs to know about the past ,present or future,he /she simply enter the year then ,the result will be the celebration dates, months and the given years?
so can you show me a little hint ? or tell me source regarding calendar?
thanks

Answer 1

Depends on what language you're writing in. Visual Basic has a Julian function, and it is simple to display a Julian date for any date or calculate time between dates. I would think most languages have a similar function.