__DATE__ - Output date of compilation (macro)

Definition	__DATE__ This macro generates the compilation date of a source file as a string in the form: “dd Mmm yyyy\0”, where
	dd	is the day (without leading zero for days < 10)
	Mmm	is the name of the month (abbreviated as with asctime)
	yyyy	is the year
Note	This macro need not be defined in an include file. Its name is recognized and replaced by the compiler.
Example	#include <stdio.h> int main(int argc, char *argv[]) { printf("Program %s was compiled on %s at %s hours\n", argv[0], __DATE__, __TIME__); return 0; }
See also	asctime, __TIME__