###### (This is the documentation for SDL3, which is under heavy development and the API is changing! [SDL2](https://wiki.libsdl.org/SDL2/) is the current stable version!) # SDL_GetDayOfWeek Get the day of week for a calendar date. ## Header File Defined in [](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_time.h) ## Syntax ```c 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 Returns a value between 0 and 6 (0 being Sunday) if the date is valid, otherwise -1; call [SDL_GetError](SDL_GetError)() for more information. ## Version This function is available since SDL 3.0.0. ---- [CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategoryTime](CategoryTime)