Tuesday, 15. March 2005
Topic: NEWS english - on March 15, 2005 at 9:24:00 AM CET
Pi Day
March 14, written 3/14 in the USA date format, is the official day for Pi Day derived from the common three-digit approximation for the number π: 3.14. It is usually celebrated at 1:59 PM (in recognition of the six-digit approximation: 3.14159). Some, using a twenty-four-hour clock rather than a twelve hour clock, say that 1:59 PM is actually 13:59 and celebrate it at 1:59 AM or 3:09 PM instead. Parties have been held by mathematics departments of various schools around the world.
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