The Time library provides the data structures and functions required to retrieve the system time, perform time calculations, and output formatted strings that allow the time to be displayed in a variety of common formats. Time is stored as ticks since 1 Jan 1970, midnight, known as UTC. This value must be converted to be of use, either into a structure or formatted output. The time.h header file defines two macros. The first, also defined in many other header files, is NULL, representing the … [Read more...] about C Library – <time.h>