C++ Date

C++ works with time through the time_t type of the <ctime> header, which stores the number of seconds since epoch (January 1, 1970). The time(nullptr) function takes the current time, then localtime() or gmtime() transforms it into a structure containing years, months, days, hours, and so on. To show it neatly, use strftime that formats time_t into a string according to the pattern we define.