Convert tm structure to time_t value: how to use mktime : Time Date « Development « C / ANSI-C

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C / ANSI-C » Development » Time Date Screenshots  Convert tm structure to time_t value: how to use mktime #include <stdio.h> #include <time.h> int main () {   time_t rawtime;   struct tm *timeinfo;   int year = 2005, month = 2 ,day = 2;      char * weekday[] = { "Sunday", "Monday",                        "Tuesday", "Wednesday",                        "Thursday", "Friday", "Saturday"};      /* get current timeinfo and modify it to user's choice */   time ( &rawtime );   timeinfo = localtime ( &rawtime );   timeinfo->tm_year = year - 1900;   timeinfo->tm_mon = month - 1;   timeinfo->tm_mday = day;   /* call mktime: timeinfo->tm_wday will be set */   mktime ( timeinfo );   printf ("That day is a %s.\n", weekday[timeinfo->tm_wday]);      return 0; }                     Related examples in the same category 1. Getting the time as a string 2. Getting date data with ease 3. Display a date 4. Get time: now 5. Print local and UTC time 6. Make time: hour, minute, second, year, day, month 7. Create local time from time() 8. How to get local time: localtime and asctime 9. Get the elapsed time: clock and CLOCKS_PER_SEC 10. Get time: how to use time() and time_t 11. How to check the performance: difftime 12. Local time and Coordinated Universal Time and date 13. converts earth days into Jovian years 14. Convert tm structure to string: how to use asctime 15. Return number of clock ticks since process start 16. Convert time_t value to string: how to use ctime 17. Return difference between two times: how to use difftime 18. Convert time_t value to tm structure as UTC time: how to use gmtime 19. Convert time_t value to tm structure in local time: How to use localtime 20. Get current time: how to use time and time_t