How is the result struct of localtime allocated in C?

Question

I was playing with the time.h file in C that helps us with time/day functions.

I came across:

struct tm * _Cdecl localtime(const time_t          


        

Answer 1

The man page says:

The return value points to a statically allocated struct which might be overwritten by subsequent calls to any of the date and time functions.

Also:

The localtime_r() function does the same, but stores the data in a user-supplied struct. It need not set tzname, timezone, and daylight.