I've always appreciated, and been fascinated by, Filofax's effort to provide its diaries with reminds of all important dates for people around the world. Even the moon cycles are indicated for those who need to know (or just like to know) that information.
Another case in point: Time-change reminders. This weekend, your Filofax will tell you that, if you're in Europe, it's time to turn your clocks back an hour. "Summer Time" is over. In the US and Canada, "Daylight Saving Time" ends next weekend.
One important date that's not indicated is the end of the world, although according to some, it was supposed to be May 21, 2011, until it was changed to October 21, 2011.
Has anyone checked their Filofax for December 21, 2012?