Happy Programmers Day

September 13, 2013 Written By Marco Monteiro

That’s right, today (Friday the 13th) is Programmers Day.

Programmers Day is an international professional day recognized in many technology companies and programming firms, that is celebrated on the 256th (hexadecimal 100th, or the 28th) day of each year (September 13 during common years and on September 12 in leap years).

The number 256 (28) was chosen because it is the number of distinct values that can be represented with an eight-bit byte, a value well-known to programmers. 256 is the highest power of two that is less than 365, the number of days in a common year.


To all the programmers outthere. Have fun!

This particular day was proposed by Valentin Balt and Michael Cherviakov, employees of Parallel Technologies (a web design company). As early as 2002, they tried to gather signatures for a petition to the government of Russia to recognize the day as the official programmers’ day.

On July 24, 2009, the Ministry of Communications and Mass Media (Russia) issued a draft of an executive order on a new professional holiday, Programmers’ Day.

All info based on wikipedia article about the day.


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"Happy Programmers Day" via @marcogmonteiro