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UE701/SEMESTRE__2024_25/SEANCE_02-19NOV2024/sf1b.c

+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+ 
+// Print the current date and time in C
+int main(void)
+{
+    // variables to store the date and time components
+    int hours, minutes, seconds, day, month, year;
+ 
+    // `time_t` is an arithmetic time type
+    time_t now;
+ 
+    // Obtain current time
+    // `time()` returns the current time of the system as a `time_t` value
+    time(&now);
+ 
+    // Convert to local time format and print to stdout
+    printf("Today is %s", ctime(&now));
+ 
+    // localtime converts a `time_t` value to calendar time and
+    // returns a pointer to a `tm` structure with its members
+    // filled with the corresponding values
+    struct tm *local = localtime(&now);
+ 
+    hours = local->tm_hour;         // get hours since midnight (0-23)
+    minutes = local->tm_min;        // get minutes passed after the hour (0-59)
+    seconds = local->tm_sec;        // get seconds passed after a minute (0-59)
+ 
+    day = local->tm_mday;            // get day of month (1 to 31)
+    month = local->tm_mon + 1;      // get month of year (0 to 11)
+    year = local->tm_year + 1900;   // get year since 1900
+ 
+    // print local time
+    if (hours < 12) {    // before midday
+        printf("Time is %02d:%02d:%02d am\n", hours, minutes, seconds);
+    }
+    else {    // after midday
+        printf("Time is %02d:%02d:%02d pm\n", hours - 12, minutes, seconds);
+    }
+ 
+    // print the current date
+    printf("Date is: %02d/%02d/%d\n", day, month, year);
+ 
+    return 0;
+}
+