Birth Day Name for Old People

Question

During the recent birthday frenzy, I wondered if there was an easy Python way to find out what day of the week I was born on. Turns out there is, using the calendar.weekday() method, as long as you weren't born before 1970 (when I was 21). Before that, you have to use weird things like Zeller's Congruence Algorithm.

I wrote this bit of code using both.

https://code.sololearn.com/cpFL07GwYcx5

Answer 1

Thanks David, I always wondered was Monday the first day of 1 AD :)

Answer 2

I didn't know that algorithm but my first program (calculates day if date is given in C++) uses the fact that 01-01-0001 is Monday. I found it by counting backwards from the day I wrote that program.

Answer 3

I like how you done all the research for this. I did not know about this algorithm. Nice work! I have often wondered how one would calculate days before epoch

Answer 4

I found an easier method than Zeller's formula but requires a little memorisation of values