Programmer's day

Programmer's day - 256th day of the year celebrated mostly by computer programmers (reason: 256 = 2 to the power of 8 = the number of values representable in a byte of data). Traditions of drinking, behaving silly, coding silly programs, mini computer games, playing with old computers, etc... Usually on September 13th, on leap years, September 12th.

see also: Pi Day