Programmers' Day 1900

Thursday, 13 September 1900

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 1900?
Programmers' Day 1900 is on Thursday, 13 September 1900.
What day of the week is Programmers' Day 1900?
It falls on Thursday.
How is Programmers' Day calculated?
This event is observed on the 256th day of the year.