Provided by: libsdl3-doc_3.2.20+ds-2_all 

NAME
SDL_GetDayOfWeek - Get the day of week for a calendar date.
SYNOPSIS
#include <SDL3/SDL_time.h>
int SDL_GetDayOfWeek(int year, int month, int day);
FUNCTION PARAMETERS
year the year component of the date.
month the month component of the date.
day the day component of the date.
RETURN VALUE
for more information.
AVAILABILITY
This function is available since SDL 3.2.0.
Simple Directmedia Layer SDL 3.2.20 SDL_GetDayOfWeek(3)