There are plenty of interesting pages about calendaring.
How to build a a client
Evert Pot/sabre.io provide a good introduction about how to build a client:
And also how to do service discovery.
Here you will find a unsorted collection of some others, we like and think are useful to you too:
Your Calendrical Fallacy Is… by Dave Delong
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
whencanireusethiscalendar answers the question of when I can reuse this calendar again.