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Day of the Programmer

September 13

|Recurring Event (See all)
Every year on September 13, but in leap years it's on September 12
the 256th day
of the year
🌐 Everywhere
First occurrence:

Created by
Valentin Balt & Michael Cherviakov

On September 11, 2009,
then president of RussiaΒ Dmitry Medvedev
the decree to make Day of the Programmer an official holiday

Programmers’ Day is celebrated on the 256th (hexadecimal 100th, or the 28th) day of each year.
The number 256 is the highest number that a byte can have,
which makes sense in the the hexadecimal system
used for counting digital data
(In simple terms, this is September 13 during common years and on September 12 in leap years)

“Writing the first 90 percent of a computer program
takes 90 percent of the time.
The remaining ten percent
also takes 90 percent of the time
and the final touches also take 90 percent of the time.”

(N.J. Rubenking)






  • https://en.wikipedia.org/wiki/Day_of_the_Programmer