As far as I know this is the printable calendar smallest in the world! 5.5 x 8.5 centimeters: a whole year behind a single business card!
Operation is simple:
1) choose the day you want to know (eg.19)
2) draws a line with your finger from the day chosen until the month you want (eg. March)
Done! In two easy steps you’ve discovered what day will be March 19: Friday!
The difference in color of the months is to recall its length: in green are the months of 31 days, in orange are the months of 30 days and in pink is February that in 2010 will be 28 of days.