Copyright 2003 Michael B. Allen <mba2000 ioplex.com> mba/time.h Time The time(3m) module provides functions for querying and manipluating time values. Time functions 
uint64_t time_current_millis(void);
The time_current_millis function returns the current time in milliseconds since Jan 1, 1970 as a 64 bit integer. It works equally well on UNIX and Windows.