C
C
DateTime - Add or Subtract Seconds
Demonstrates the AddSeconds method to add or subtract a number of seconds from a date/time.Note: This example is only valid in Chilkat v9.5.0.65 or later.
Chilkat C Downloads
#include <C_CkDateTime.h>
void ChilkatSample(void)
{
HCkDateTime dateTime;
dateTime = CkDateTime_Create();
CkDateTime_SetFromCurrentSystemTime(dateTime);
printf("Current time: %s\n",CkDateTime_getAsTimestamp(dateTime,FALSE));
CkDateTime_AddSeconds(dateTime,1);
printf("Current time + 1 second: %s\n",CkDateTime_getAsTimestamp(dateTime,FALSE));
CkDateTime_AddSeconds(dateTime,-2);
printf("Current time - 1 second: %s\n",CkDateTime_getAsTimestamp(dateTime,FALSE));
// Add 30 days (60 * 60 * 24 * 30)
CkDateTime_AddSeconds(dateTime,60 * 60 * 24 * 30);
printf("Current time + 30 days: %s\n",CkDateTime_getAsTimestamp(dateTime,FALSE));
// Sample output for test run on 2-Dec-2016:
// Current time: 2016-12-02T12:59:13Z
// Current time + 1 second: 2016-12-02T12:59:14Z
// Current time - 1 second: 2016-12-02T12:59:12Z
// Current time + 30 days: 2017-01-01T12:59:12Z
CkDateTime_Dispose(dateTime);
}