Defined in header
Returns the current calendar time encoded as a std::time_t object, and also stores it in the object pointed to by
arg is a null pointer.
|arg||-||pointer to a std::time_t object to store the time, or a null pointer|
 Return value
Current calendar time encoded as std::time_t object on success, (std::time_t)(-1) on error. If
arg is not null, the return value is also stored in the object pointed to by
The encoding of calendar time in std::time_t is unspecified, but most systems conform to POSIX specification and return a value of integral type holding the number of seconds since the Epoch. Implementations in which std::time_t is a 32-bit signed integer (many historical implementations) fail in the year 2038.
Wed Sep 21 10:27:52 2011 1316615272 seconds since the Epoch
 See also
| converts time since epoch to calendar time expressed as local time
| converts time since epoch to calendar time expressed as Universal Coordinated Time
| wall clock time from the system-wide realtime clock
C documentation for time