date("d") - 21
date("D") - Thu
date("M") - Aug
date("Y") - 2025
date("dmy") - 21/08/25
date("d/m/y h:i:s") - 21/08/25 04:44:27
date_default_timezone_get() - UTC
date_default_timezone_set() - 1
date("d/m/y h:i:s") - 21/08/25 01:44:27
date("ymd") - 250821
strtotime(date("ymd")) -
data aniversario - data atual = 2022-11-29 - 2025-08-21 = -996