Julian Date converter: get Julian's date today & Julian's day

What is Today's Julian Date?

Today's Julian Date is 24144 corresponding to today's Gregorian date, Thursday, 23 May, 2024 (UTC). Knowing that the current year is not a leap year. Today's number in Julian's calendar is 144, for Julian's day number related to astronomers (ex: 2460106.5), use the converter below.

Convert Gregorian to Julian

Time: (00:00:00) to (23:59:59)


Convert Julian Day Number (in Astronomy) to Gregorian


Convert Julian Date to Gregorian


About Julian Dates & Julian day number

The phrase "Julian Date" is used to refer to a date format with the letters yyddd (yy = year, ddd = day) in mainframe and other contexts. Yet, a Julian date technically has multiple meanings. A Julian date is the number of days since the start of the Julian Period, as defined by astronomers (January 1, 4713 BC). Called "Julian day number".

An "ordinal date" is more appropriately referred to as a yyddd (or comparable formats like yyyyddd, yy-ddd) date. On this page, we've used the phrase "Julian Dates," which is what we refer to them as in the mainframe world.

About converters above

These converters are a modified version from the "U.S. Naval Observatory". Its results have been checked and tested with the results of..

  • The "U.S. Naval Observatory" converter.
  • The "ssd.jpl.nasa.gov" converter.
  • The "Longpela Expertise" converter.

How to use the Converters on this page

  • If you want to get the Julian date or Julian day number use the first converter. Choose the day and the month and enter the year.. then click on the convert button.
  • If you want to get the gregorian date use the second converter. Enter the julian day number.. then click on the convert button.

Frequently Asked Questions (FAQ)

What is the Julian date format?

Julian's date format presents the current year with the number of days that have passed since the beginning of that year. For example, January 5, 2022, would be expressed as "22005", while (December 31, 2022) would be represented as "22365".

What is today's date on the Julian calendar?

On the Julian calendar, today's date, corresponding to May 23, 2024, would be represented as 24144.

What is today's Julian date 2023?

Today's Julian date is 24144, corresponding to today's Gregorian date 23-May-2024.

The Resources