This is not complete solution, But hope this will help you
- Get current time Get in milliseconds,
- the time difference between
- next execution time minus current time Settimeout with result
millisecons
Here is simple example
You just need to calculate the difference between the current time and the target time and use setTimeout() with that value.
For example, depending on how your target browsers parse dates, you could do the following:
function alert3pm() {
alert("It's 3PM!");
}
var timeAt3pm = new Date("1/31/2011 03:00:00 PM").getTime()
, timeNow = new Date().getTime()
, offsetMillis = timeAt3pm - timeNow;
setTimeout(alert3pm, offsetMillis);
Or rather, instaed of parsing a date (since that's really inconsistent between browsers) you could do something like this:
function getTimeAtHour(hour) {
var t = new Date();
t.setHours(hour);
t.setMinutes(0);
t.setSeconds(0);
t.setMilliseconds(0);
return t;
}