Firefox Javascript Date object issue

akari no ryu

I'm having a bit of trouble with a date copying function I've tried implimenting. What it does is takes a string in the format "HH:MM" to represent the time and returns a date object with the same date but a specific time.

The code responsible for this is

Date.prototype.copy=function(time){
	copy = new Date();
	copy.setDate(this.getDate());
	copy.setMonth(this.getMonth());
	copy.setYear(this.getYear());
	bits=time.split(/:/);
	copy.setHours(bits[0]);
	copy.setMinutes(bits[1]);
	// Debugging info
	document.getElementById("testDiv").innerHTML+="Turning "+bits[0]+" section of time string "+time+" into an hour value of "+copy.getHours()+"<br/>Created date object with value "+copy+"<br/><br/>";
	return copy;
}

But it's producing the following date values

Turning 00 section of time string 00:00 into an hour value of 0
Created date object with value Sun Mar 28 0106 00:00:44 GMT+0000 (GMT Standard Time)

Turning 00 section of time string 00:59 into an hour value of 0
Created date object with value Sun Mar 28 0106 00:59:44 GMT+0000 (GMT Standard Time)

Turning 01 section of time string 01:00 into an hour value of 0
Created date object with value Sun Mar 28 0106 00:00:44 GMT+0000 (GMT Standard Time)

Turning 01 section of time string 01:59 into an hour value of 0
Created date object with value Sun Mar 28 0106 00:59:44 GMT+0000 (GMT Standard Time)

Turning 02 section of time string 02:00 into an hour value of 2
Created date object with value Sun Mar 28 0106 02:00:44 GMT+0100 (GMT Daylight Time)

Turning 02 section of time string 02:59 into an hour value of 2
Created date object with value Sun Mar 28 0106 02:59:44 GMT+0100 (GMT Daylight Time)

Turning 03 section of time string 03:00 into an hour value of 3
Created date object with value Sun Mar 28 0106 03:00:44 GMT+0100 (GMT Daylight Time)

Turning 03 section of time string 03:59 into an hour value of 3
Created date object with value Sun Mar 28 0106 03:59:44 GMT+0100 (GMT Daylight Time)

It's only the value for 01:00 that's off in all 24 hours of the day, and it changes the GMT.

The code runs perfectly in internet explorer.

Any help on this front would be appreciated.

akari no ryu

This situation has been resolved. I'd love to know what I did wrong, if anyone can tell me, but I'll post the workaround:

Date.prototype.copy=function(time){
	copy = new Date();
	copy.setUTCDate(this.getDate());
	copy.setUTCMonth(this.getMonth());
	copy.setUTCFullYear(this.getFullYear());
	bits=time.split(/:/);
	copy.setUTCHours(bits[0]);
	copy.setUTCMinutes(bits[1]);
	return copy;
}