Programmers' Day 1904

Monday, 12 September 1904

Programmers' Day is celebrated on the 256th day of the year, a number significant in computing as a power of two, honouring software developers, programmers, and the global technology community.

Frequently asked questions

When is Programmers' Day 1904?
Programmers' Day 1904 is on Monday, 12 September 1904.
What day of the week is Programmers' Day 1904?
It falls on Monday.
How is Programmers' Day calculated?
This event is observed on the 256th day of the year.