How to make a calendar ?

I such a algo for made a perpetual calandar.

Say what?

like one of these?

http://www.timeanddate.com/calendar/

yes, for ex.

how to code the algo ?

Ask google? "calendar algorithm"

example : http://www.geocities.com/oosterwal/computer/calendar.html

K@li, I know english isn't your first language, but you'd probably get a lot more useful help if you made your questions a bit longer.

Figure out the leap year algo and the rest is stable. ;)

Probably harder to understand.