Programmers' Day 1940

Thursday, 12 September 1940

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 1940?
Programmers' Day 1940 is on Thursday, 12 September 1940.
What day of the week is Programmers' Day 1940?
It falls on Thursday.
How is Programmers' Day calculated?
This event is observed on the 256th day of the year.