The ctime() function is define in the time.h header file. The ctime() function returns the string representing the localtime based on the argument timer.
Syntax:
char *ctime(const time_t *timer)
Parameters: This function accepts single parameter time_ptr. It is used to set time_t object that contains a time value.
Return Value: This function returns a string that contains the date and time which is in human readable form.
Example:
Www Mmm dd hh:mm:ss yyyy
Time Complexity: O(1)
Auxiliary Space: O(1)
Note: The description of results are given below:
- Www: Day of week.
- Mmm: Month name.
- dd : Day of month.
- hh : Hour digit.
- mm : Minute digit.
- ss : Second digit.
- yyyy : Year digit.
Example:
C++
#include <iostream> #include <ctime> int main() {
// create a time_t object representing 1 hour from now
time_t one_hour_from_now = time (0) + 3600;
// convert one_hour_from_now to string form
char * dt = ctime (&one_hour_from_now);
// print the date and time
std::cout << "One hour from now, the date and time will be: " << dt << std::endl;
return 0;
} |
C
// C program to demonstrate // ctime() function. #include <stdio.h> #include <time.h> int main () {
time_t curtime;
time (&curtime);
printf ( "Current time = %s" , ctime (&curtime));
return (0);
} |
Output:
One hour from now, the date and time will be: Thu Apr 13 09:01:46 2023
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