Definition: The current Julian Day is a single number that is a count of the number of days that have past since noon Universal Time on January 1, 4713 BCE. This means that midnight on the zero meridian will always have a Julian day ending with .5
Julian Day
From Stephen Chapman, former About.com Guide
Suggested Reading
See More About
Explore JavaScript
- About.com
- Computing
- JavaScript
- Reference
- JavaScript Glossary - Julian Day