Welcome To Day 733691 (AD)

Don't ask why, but for some reason I was curious and wanted to know how many days have passed since January 1, Year 1 (AD).

The easiest way to figure it out was to find today's Julian Date, the Julian Date of January 1, 1 and then subtract "Day 1" from today (and then add 1, of course).

For those that don't know: the Julian Date is the number of days since January 1, 4713 BC.

Today's Julian Date is 2455113.5, and January 1, 1's is 1721423.5. Do the subtraction (2455113.5 – 1721423.5) and you get 733690 days since Day 1. Add 1 (to include Day 1 in the number) and you end up with today being Day 733691.

The Navy has a nifty form where you can enter a date and get the Julian Date over at http://aa.usno.navy.mil/data/docs/JulianDate.php

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