973
xkcd #2846: Daylight Saving Choice
(imgs.xkcd.com)
Alt text:
I average out the spring and fall changes and just set my clocks 39 minutes ahead year-round.
The symmetry calendars are better. They don't break the 7 day week cycle, they instead have a 52 week common year, a 53 week leap year, and a complex leap year formula
I would expect the leap week to be part of the end of year holiday