Is Today (24 Feb.) a Leap Day ?
Friday, February 24, 2012 9:28:40 AM
Julius Caesar implemented a new calendar – the Julian Calendar – in 45 BCE (Before Common Era) with an extra day added every 4 years. At the time, Leap Day was February 24, because February was the last month of the year (meaning that 23 February was the last day in non-leap years). The Julian calendar has in the meantime been replaced by the Gregorian calendar. Most of us now “celebrate” the last day of February in leap years (like 2012) as leap day, namely 29 February, but apparently some communities still stick to the old tradition of the 24th.
Leap seconds is another story. The leap second was introduced in 1972. Our year is adjusted with a leap second now and then to keep abreast with the decreasing rotation speed of our earth. The next leap second will be added at the end of 30 June 2012. A discussion of whether to abolish the leap second or not has recently been deferred to 2015.