time_t
From cppreference.com
                    
                                        
                    
                    
                                                            
                    | Defined in header  <time.h> | ||
| typedef /* unspecified */ time_t; | ||
Arithmetic type capable of representing times.
Although not defined, this is almost always an integral value holding the number of seconds (not counting leap seconds) since 00:00, Jan 1 1970 UTC, corresponding to POSIX time.
[edit] Example
Show the start of the epoch.
Run this code
Possible output:
0 seconds since the epoch began Thu Jan 1 00:00:00 1970
[edit] See also
| returns the current calendar time of the system as time since epoch (function) | |
| converts time since epoch to calendar time expressed as local time (function) | |
| converts time since epoch to calendar time expressed as Coordinated Universal Time (UTC) (function) | |
| C++ documentation for time_t | |


