May 09
A coworker from the data science department of my company did some commit-crunching and plotting over 452 million commits on github:

https://www.reddit.com/r/programming/comments/6a5bb8/workdays_vs_weekends_morning_vs_night_github/

Looks like (PST timezone) D programmers are more active from 15:00 to 01:00 and weekends!