Julian Day Number
| Epoch | Confidence |
|---|---|
| 24 November 4713 BCE, +12:00:00 | Exact |
Overview
The Julian Day Number is a simple count of number of days since noon on 24 November 4713 BCE (1 January 4713 BC in the Julian Calerndar). The JDN is used by astronomers and programmers to simplify calculations for the passage of time, and many of the calculations in this website are based off of the JDN.
Info
There are many versions of the JDN, most of which involve truncating the large number for easier calculations.
Accuracy
This counter is rigorously-studied and exactly accurate, with the only question being the addition of Terrestrial Time.
Source
All of the information on this calendar came from its Wikipedia article.