From the BlogSubscribe Now

What day is this?

Pat Weaver’s fascinating paper reveals the history of the calendars we use

5 July 2014 – Dallas, London, Sydney – Pat Weaver’s latest paper is titled “The Origins of the Coordinated Universal Time (UTC) Calendar.” According to Pat, “Next time you are setting up your calendars in a favorite scheduling tool, stop for a minute and consider the odd collection of numbers that make up the standard UTC calendar, 60 seconds in a minute, 60 minutes in an hour, 24 hours in a day and varying numbers of days in the months and years. The origins of these numbers and the basis of the modern calendar go back a very long way.” Read Pat’s fascinating paper in the PM World Library at