Remember to set your alarms for March 14 at 1:59.
Once again that round time of year approaches. This Friday at either or 1:59AM or 1:59PM, we get to celebrate the ratio. Omitting the year, and going from most significant to least significant time unit, the time will be 3-14 1:59, which expressed with one decimal point is 3.14159. So set your alarms to either or both.
It is acceptable to celebrate the whole day. You can also use this time to prepare for Pi Day of The Century.