How is your business celebrating PI DAY 2015

Saturday is the day when love of math and a hankering for pastry come full circle. Saturday is Pi Day, a once-in-a-year calendar date that this time squares the fun with a once-in-a-century twist.

Saturday is 3-14-15, the first five digits of the mathematical constant pi: 3.141592653. The best times to celebrate are at 9:26 and 53 seconds, morning and evening. The next time that happens is in March 2115.