PHP & MySQL Date Format Reference

Title PHP PHP example MySQL MySQL example Notes
date($format, [$timestamp]) DATE_FORMAT(date, format)

Day & Date

Day of month with leading zero d 21 %d 21
Day of month without leading zero j 21 %e 21
Day of month with english ordinal suffix jS 21st %D 21st
Day name l Tuesday %W Tuesday
Day name abbreviated D Tue %a Tue
Day number in current week w 2 %w 2 0-Sunday, 6-Saturday
Day number in current year z 324 %j 325 PHP 0-365, MySQL 001-366

Month

Month of year with leading zero m 11 %m 11
Month of year without leading zero n 11 %c 11
Month name F November %M November
Month name abbreviated M Nov %b Nov

Year

Year Y 2017 %Y 2017
Year abbreviated y 17 %y 17

Hour

24 Hour with leading zero H 10 %H 10
24 Hour without leading zero G 10 %k 10
12 Hour with leading zero h 10 %h 10 %I also works in MySQL
12 Hour without leading zero g 10 %l 10
AM or PM A AM %p AM 'a' can also be used in php for lowercase result.

Minute

Minute with leading zero i 10 %i 10

Second

Seconds with leading zero s 06 %s 06 %S also works in MySQL

Other

Microseconds u 000000 %f 000000
Leap year L 0 '1' if leap year, '0' if not. No MySql alternative.
Documentation php.net - date() mysql.com - date_format()