mktime
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                    |   Defined in header <time.h>
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|   time_t mktime( tm* time );  | 
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Converts local calendar time to a time since epoch as a time_t object, ignoring the values of time->tm_wday and time->yday. The values of other components of time are not restricted to their usual ranges. A negative value of time->tm_isdst causes mktime to attempt to determine if Daylight Saving Time was in effect.
If successful, recalculates and updates all fields in time to fit their proper ranges.
Contents | 
[edit] Parameters
| time | - | pointer to a tm object specifying local calendar time to convert | 
[edit] Return value
time since epoch as a time_t object on success or -1 if time cannot be represented as a time_t object.
[edit] Example
| This section is incomplete Reason: no example  | 
[edit] See also
|    converts time since epoch to calendar time expressed as local time  (function)  | |
|   C++ documentation for mktime 
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