gregorian calendar to solar calendar converter

[12321254]

hi I want to use my PC date and time in my vi but it is in Gregorian system and i have to convert it to solar system but i found this conversion has some especial leap days, beside each 4 years leap year we have another leap years for that float number for example each n year leap years change to 5 years instead of 4 years! have any of you a reliable vi for this conversion? regards

[smercurio_fc]

Why does this sound like a homework problem?

I'm also not aware of a "solar system" calendar. How does it work on Jupiter?

[RavensFan]

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@12321254 wrote:
 beside each 4 years leap year we have another leap years for that float number for example each n year leap years change to 5 years instead of 4 years! have any of you a reliable vi for this conversion? regards

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I've never heard of that one before.  Can you provide a reference talking about a 5 year interval?  Are you talking about that century years are not leap years unless they are divisible by 400?  (e.g. 2000 = leap year, 1900 <> leap year)

[12321254]

hi solar years are like Gregorian years on Jupiter but the start and it's corrections are different for example in Gregorian years 2012 is a leap year i mean the 4th year of each 4 year is leap year but in hijri shamsi (Persian calendar) 3rd year is leap year Dear Ravens Fan that's true (e.g. 2000 = leap year, 1900 <> leap year) is Gregorian correction but in solar correction there is another method all in all in need a Persian calender converter

[12321254]

i found persian calendar correction graph

every 33 years it correct itself Gregorian calendar is different

[RavensFan]

You are probably going to have to research the the algorithm and program it yourself.  The rest of the world uses a normal calendar so all time and date conversions are based on that.

[PhillipBrooks]

Your images seem to come from this wikipedia entry: http://en.wikipedia.org/wiki/Iranian_calendars

At the bottom of this entry is an external programming link to the Microsoft MSDN library. There is a .NET function that you might be able to use instead of coding the solution yourself.

http://msdn.microsoft.com/en-us/library/system.globalization.persiancalendar.aspx

There is also a link to a JavaScript example

http://farhadi.ir/projects/jalalijscalendar/