Sample code for 30+ languages & platforms
C++

Date/Time Older-Than N Seconds/Minutes/Hours/Days

Demonstrates the how to tell if a date/time is older than the current time by N seconds, minutes, hours, or days.

Chilkat C++ Downloads

C++
#include <CkDateTime.h>

void ChilkatSample(void)
    {
    CkDateTime dt;

    //  Set to the current system date/time.
    dt.SetFromCurrentSystemTime();
    std::cout << "Now: " << dt.getAsTimestamp(true) << "\r\n";

    //  Subtract 10 minutes, making the date 10 minutes in the past.
    dt.AddSeconds(-600);
    std::cout << "10 minutes ago: " << dt.getAsTimestamp(true) << "\r\n";

    //  Is the date/time older than 10 seconds?
    bool b = dt.OlderThan(10,"seconds");
    std::cout << "Older than 10 seconds: " << b << "\r\n";

    //  Is the date/time older than 5 minutes?
    b = dt.OlderThan(5,"minutes");
    std::cout << "Older than 5 minutes: " << b << "\r\n";

    //  Is the date/time older than 15 minutes?
    b = dt.OlderThan(15,"minutes");
    std::cout << "Older than 15 minutes: " << b << "\r\n";

    //  Is the date/time older than 1 hour?
    b = dt.OlderThan(1,"hour");
    std::cout << "Older than 1 hour: " << b << "\r\n";

    //  Is the date/time older than 1 day?
    b = dt.OlderThan(1,"day");
    std::cout << "Older than 1 day: " << b << "\r\n";

    //  Output:

    //  	Now: 2017-05-05T23:33:06-0500
    //  	10 minutes ago: 2017-05-05T23:23:06-0500
    //  	Older than 10 seconds: True
    //  	Older than 5 minutes: True
    //  	Older than 15 minutes: False
    //  	Older than 1 hour: False
    //  	Older than 1 day: False
    }