Julian Date Converter
Convert between Julian Day Number and Gregorian calendar dates. Shows day of week for any date in history.
How to Use Julian Date Converter
The Julian Date Converter transforms between Julian Day Numbers (JDN) and Gregorian calendar dates. The Julian Day Number is a continuous count of days since January 1, 4713 BC, used in astronomy, historical research, and computing for unambiguous date references. Enter a Gregorian date to get its Julian Day Number, or enter a JDN to find the corresponding calendar date. The tool also shows the day of the week for any converted date. Essential for astronomers calculating celestial events, historians working with ancient dates, and programmers handling date arithmetic across calendar systems.
Step-by-Step Instructions
- Select conversion direction (Date to Julian or Julian to Date)
- Enter the date or Julian Day Number
- Click Convert to perform the calculation
- View the result with day of week information
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