Today is Friday the 13th, the third in a series of three, each thirteen weeks apart. This is the first time that has occured since 1984 and is the last time until 2040.
"The fact is that any leap year starting with a Sunday will have a Friday the 13th in January, April and July. Leap years starting with Sundays are the only years in which you’ll find this exact combination of three Friday the 13ths, spaced at exactly 13 weeks apart in the same calendar year, in January, April and July."
I hope I made the most of these days in 2012 because I'm not I can make it until the next one.
"How often does the January-April-July Friday the 13th trilogy repeat?
Not often. It happens only three to four times every century. It last happened in 1984 and will happen next in 2040. Throughout the 20th and 21st centuries, we get a January-April-July Friday the 13th in cycles of 28 years. That 28-year cycle, by the way, isn’t mysterious either. Days and dates generally always realign every 28 years. Again, a calendar quirk."
2012 has three Friday the 13ths. What are the odds?
