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La fonction mktime () prend six paramètres : heure, minute, seconde, mois, jour et année. Ces paramètres représentent les composants individuels d'une date et d'une heure.
- Parameters
- Return Value
- Example 2
This function accepts only a single parameter − 1. timeptr− This is the pointer to a time_t value representing a calendar time, broken down into its components. 2. Below is the detail of timeptr structure −
This function returns a time_t value corresponding to the calendar time passed as a parameter. The error has occured when it returns -1.
In this program, we calculates the date and time(100 days and 30 hours) from the present moment and prints the corresponding day of the week.
The mktime() function also changes the tm structure by correcting overflowing dates and filling in the tm_wday and tm_yday members. The mktime() function is defined in the <ctime> header file.
Oct 24, 2025 · The mktime, _mktime32 and _mktime64 functions convert the supplied time structure (possibly incomplete) pointed to by timeptr into a fully defined structure with normalized values and then converts it to a time_t calendar time value. The converted time has the same encoding as the values returned by the time function. The original values of the tm_wday and tm_yday components of the timeptr ...
A negative value of time->tm_isdst causes mktime to attempt to determine if Daylight Saving Time was in effect. If the conversion is successful, the time object is modified. All fields of time are updated to fit their proper ranges. time->tm_wday and time->tm_yday are recalculated using information available in other fields.
mktime () retourne un horodatage UNIX correspondant aux arguments fournis. Cet horodatage est un entier long, contenant le nombre de secondes entre le début de l'époque UNIX (1er Janvier 1970 00:00:00 GMT) et le temps spécifié. Les arguments optionnels ou null peuvent être omis, de droite à gauche, et tous les arguments manquants sont utilisés avec la valeur courante de l'heure et du jour.
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The mktime() function in C time.h converts a broken-down time, represented by a struct tm, into a time_t value that represents the corresponding local calendar time.
