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C library function - asctime()
Description
The C library function char *asctime(const struct tm *timeptr) returns a pointer to a string which represents the day and time of the structure struct timeptr.
Declaration
Following is the declaration for asctime() function.
char *asctime(const struct tm *timeptr)
Parameters
The timeptr is a pointer to tm structure that contains a calendar time broken down into its components as shown below −
struct tm { int tm_sec; /* seconds, range 0 to 59 */ int tm_min; /* minutes, range 0 to 59 */ int tm_hour; /* hours, range 0 to 23 */ int tm_mday; /* day of the month, range 1 to 31 */ int tm_mon; /* month, range 0 to 11 */ int tm_year; /* The number of years since 1900 */ int tm_wday; /* day of the week, range 0 to 6 */ int tm_yday; /* day in the year, range 0 to 365 */ int tm_isdst; /* daylight saving time */ };
Return Value
This function returns a C string containing the date and time information in a human-readable format Www Mmm dd hh:mm:ss yyyy, where Www is the weekday, Mmm the month in letters, dd the day of the month, hh:mm:ss the time, and yyyy the year.
Example
The following example shows the usage of asctime() function.
#include <stdio.h> #include <string.h> #include <time.h> int main () { struct tm t; t.tm_sec = 10; t.tm_min = 10; t.tm_hour = 6; t.tm_mday = 25; t.tm_mon = 2; t.tm_year = 89; t.tm_wday = 6; puts(asctime(&t)); return(0); }
Let us compile and run the above program that will produce the following result −
Sat Mar 25 06:10:10 1989
time_h.htm
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