C <time.h> - tm structure type
The C <time.h> tm type is a structure holding a calendar date and time broken down into its components. The structure contains nine members of type int (in any order) as given below:
| Member object | Type | Description |
|---|---|---|
| tm_sec | int | seconds after the minute - [0, 61] (until C99) and [0, 60] (since C99) |
| tm_min | int | minutes after the hour – [0, 59] |
| tm_hour | int | hours since midnight – [0, 23] |
| tm_mday | int | day of the month – [1, 31] |
| tm_mon | int | months since January – [0, 11] |
| tm_year | int | years since 1900 |
| tm_wday | int | days since Sunday – [0, 6] |
| tm_yday | int | days since January 1 – [0, 365] |
| tm_isdst | int | Daylight Saving Time flag. The value is positive if DST is in effect, zero if not and negative if no information is available. |
Example:
The example below shows the usage of tm type.
#include <stdio.h>
#include <time.h>
int main (){
struct tm start = {.tm_mday = 10};
mktime(&start);
//displaying the time
printf("%s", asctime(&start));
return 0;
}
The output of the above code will be:
Wed Jan 10 00:00:00 1900
❮ C <time.h> Library
