Question

Here I have a function which I use to calculate the difference between two Time variables, start and end, and display the output as ‘Past’, ‘Current’, or ‘Future’.

I was able to calculate ‘Current’ and ‘Future’ values, but no luck with “Past’. Here is the jsFiddle and any help would be great.

On a side note, I do prefer a plugin-less way to achieve this.

//My Start time and End time
var start = "Mon Nov 22 2012 08:45:00 GMT+0800 (Malay Peninsula Standard Time)";
var end = "Mon Nov 22 2012 10:15:00 GMT+0800 (Malay Peninsula Standard Time)";

//Calling to test function
test(start, end);

//Function to calculate 
function test(startTime, endTime) {
    startTime= new Date(startTime);
    endTime= new Date(endTime);
    var currentTime = new Date();
    var difference = currentTime - startTime; 

    if (difference > 0 && currentTime > startTime) {
        alert ("Past!");
    } 

    if(startTime < currentTime && currentTime < endTime){ 
        alert("Current!");
    }

    if(difference < -1){
        alert("Future!");
    }
}​

Link to jsFiddle

Answer 1

Sigh!! I just need some sleep. It’s working and here’s the updated jsFiddle: http://jsfiddle.net/9jk6a/9/

Thanks everyone who helped.

//My Start time and End time
var start = "Mon Nov 23 2012 08:45:00 GMT+0800 (Malay Peninsula Standard Time)";
var end = "Mon Nov 23 2012 10:15:00 GMT+0800 (Malay Peninsula Standard Time)";

//Calling to test function
test(start, end);

//Function to calculate 
function test(startTime, endTime) {
    startTime= new Date(startTime);
    endTime= new Date(endTime);
    var currentTime = new Date();
    var difference = currentTime - startTime; 

    if (startTime < endTime && endTime < currentTime) {
        alert ("Past!");
    } 

    if(startTime < currentTime && currentTime < endTime){ 
        alert("Current!");
    }

    if(currentTime < startTime && startTime < endTime){
        alert("Future!");
    }
}​