JavaScript: IF time >= 9:30 then

Question

I'm trying to write a statement that says "if time is this and less than that then". I can use get hours and get min. However, I'm having problems combining a time such as 9:30.

Example,

var now = new Date();
var hour = now.getHours();
var day = now.getDay();
var mintues = now.getMinutes();

if (day == 0 && hour >= 9 && hour <= 11 && mintues >= 30) { 
    document.write(now); 
}

This only if the time is less between 9:30 10. As soon as the clock hits 10 the minutes are then < 30 and the script breaks.

Any thoughts on how to better incorporate the time function to make this theory work?

Thanks,

Answer 1

use new Date().getTime() returns milliseconds for much easier comparison. This way there is no need to check hour, min, second, millisecond. Fiddle link

var d930 = new Date(2010, 12, 21, 9, 30, 0, 0), // today 9:30:00:000
    d931 = new Date(2010, 12, 21, 9, 31, 0, 0), // today 9:31:00:000
    t930 = d930.getTime(),
    t931 = d931.getTime();


console.log(t931 > t930);

This way your code can check against a static 9:30 time.

var time930 = new Date(2010, 12, 21, 9, 30, 0, 0).getTime(),
    sunday = 0,
    now = new Date();

if(now.getDay() == sunday && now.getTime() >= time930){
    /* do stuff */
}