jdmonthname: Month name from Julian day count

Get a month name from a Julian Day count

jdmonthname() returns a calendar month name from a Julian Day count.

$jd = gregoriantojd(9, 14, 2026);
echo jdmonthname($jd, CAL_MONTH_GREGORIAN_LONG);

$day_number = cal_to_jd(CAL_JULIAN,12,4,2013);
$month_name = jdmonthname($day_number,2);
echo $month_name;

The output is Dec

By changing the mode we can get month in different formats.

CAL_MONTH_GREGORIAN_SHORT: Jan, Feb, Mar ...
CAL_MONTH_GREGORIAN_LONG: January, February, March ...
CAL_MONTH_JULIAN_SHORT: Jan, Feb, Mar ...
CAL_MONTH_JULIAN_LONG: January, February, March ...
CAL_MONTH_JEWISH: Tishri, Heshvan, Kislev ...
CAL_MONTH_FRENCH: Vendemiaire, Brumaire, Frimaire ...

Syntax

jdmonthname($julianDay, $mode)

Here is an example.

Getting current month name

Easy way is to use the date format to get current month name.

echo date('M');

Output is Oct

date("m")

output is 10
Unix timestamp to Julian day count
Date Picker using JQuery
Calendar Functions

Subhendu Mohapatra

Author & Instructor at plus2net

I write and maintain practical tutorials on Python, PHP, SQL, JavaScript, HTML, jQuery, and web development at plus2net. The tutorials focus on clear explanations, working examples, and code that readers can test and adapt while learning.

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