There are plenty of interesting pages about calendaring.
Here you will find a unsorted collection of some, we like and think are useful to you too:
- Your Calendrical Fallacy Is… by Dave Delong
- Falsehoods programmers believe about time and More falsehoods programmers believe about time; “wisdom of the crowd” edition by Noah Sussman
- The evolution a developer’s understanding of time by Stephen Bonns
- Calendar Facts by xkcd: A webcomic of romance, sarcasm, math, and language.
- UTC is enough for everyone …right? Zach Holman talks about Calendar and such