Node.js

Get Current Date/Time from NIST Time Server

See more Socket/SSL/TLS Examples

Demonstrates using Chilkat Socket to connect to an NIST time server and (using the old Time Protocol (RFC 868)), will read the current GMT time.

Note: This is not necessarily the very best means for getting the current date/time. The most commonly used time protocol is the Network Time Protocol (RFC-1305).

Node.js

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

    //  This example requires the Chilkat API to have been previously unlocked.
    //  See Global Unlock Sample for sample code.

    var socket = new chilkat.Socket();

    //  Connect to an NIST time server and read the current date/time
    var maxWaitMs = 4000;
    var useTls = false;
    success = socket.Connect("time-c.nist.gov",37,useTls,maxWaitMs);
    if (success !== true) {
        console.log(socket.LastErrorText);
        return;
    }

    //  The time server will send a big-endian 32-bit integer representing
    //  the number of seconds since since 00:00 (midnight) 1 January 1900 GMT.
    //  The ReceiveInt32 method will receive a 4-byte integer, but returns
    //  true or false to indicate success.  If successful, the integer
    //  is obtained via the ReceivedInt property.
    var bigEndian = true;
    success = socket.ReceiveInt32(bigEndian);
    if (success !== true) {
        console.log(socket.LastErrorText);
        return;
    }

    var dt = new chilkat.CkDateTime();
    dt.SetFromNtpTime(socket.ReceivedInt);

    //  Show the current local date/time
    var bLocalTime = true;
    console.log("Current local date/time: " + dt.GetAsRfc822(bLocalTime));

    maxWaitMs = 10;
    socket.Close(maxWaitMs);

}

chilkatExample();