doomsday_test, a C++ code which calls doomsday() to determine the day of the week corresponding to a given year, month and day of a date.
The computer code and data files described and made available on this web page are distributed under the MIT license
doomsday, a C++ code which is given the year, month and day of a date, and uses John Conway's doomsday algorithm to determine the corresponding day of the week.