(Node.js) Compute Difference Between Two DateTime Strings

Demonstrates how to compute the difference between two datetime strings.

Install Chilkat for Node.js and Electron using npm at Chilkat npm packages for Node.js Chilkat npm packages for Electron on Windows, Linux, MacOSX, and ARM

var os = require('os');
if (os.platform() == 'win32') {  
    if (os.arch() == 'ia32') {
        var chilkat = require('@chilkat/ck-node21-win-ia32');
    } else {
        var chilkat = require('@chilkat/ck-node21-win64'); 
    }
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node21-arm');
    } else if (os.arch() == 'x86') {
        var chilkat = require('@chilkat/ck-node21-linux32');
    } else {
        var chilkat = require('@chilkat/ck-node21-linux64');
    }
} else if (os.platform() == 'darwin') {
    if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node21-mac-m1');
    } else {
        var chilkat = require('@chilkat/ck-node21-macosx');
    }
}

function chilkatExample() {

    // Imagine we have these strings:

    var t1 = "2022-11-14 15:45:38";
    var t2 = "2022-11-16 17:23:41";

    // How many minutes are between the two?

    // First, we'd want load each date/time into a Chilkat CkDateTime object.
    // In this case, there are no CkDateTime methods that accept the above format.
    // However.. the CkDateTime's SetFromTimestamp will accept a date in the format "YYYY-MM-DDThh:mm:ssZ"

    // First modify the above dates to the timestamp format.
    var sb1 = new chilkat.StringBuilder();
    sb1.Append(t1);
    var count = sb1.Replace(" ","T");
    sb1.Append("Z");

    var sb2 = new chilkat.StringBuilder();
    sb2.Append(t2);
    count = sb2.Replace(" ","T");
    sb2.Append("Z");

    // Load each into a CkDateTime
    var dt1 = new chilkat.CkDateTime();
    dt1.SetFromTimestamp(sb1.GetAsString());
    // verify...
    console.log(dt1.GetAsTimestamp(false));

    var dt2 = new chilkat.CkDateTime();
    dt2.SetFromTimestamp(sb2.GetAsString());
    // verify...
    console.log(dt2.GetAsTimestamp(false));

    // Get the difference in seconds
    var diffSeconds = dt2.DiffSeconds(dt1);
    console.log("Difference in seconds: " + diffSeconds);
    console.log("Difference in minutes: " + (diffSeconds / 60));

}

chilkatExample();