Forums: Flash:

Working on a clock, very simple stuff:

onClipEvent (enterFrame) {

time = new Date();

mil = time.getMilliseconds();

s = time.getSeconds();

m = time.getMinutes();

h = time.getHours();

seconds._rotation = s*6+(mil/(1000/6));

minutes._rotation = m*6+(s/10);

hours._rotation = h*30+(m/2);

}

Found this:

public static function getTimezone():Number
{
  // Create two dates: one summer and one winter
  var d1 : Date = new Date( 0, 0, 1 )
  var d2 : Date = new Date( 0, 6, 1 )
 
  // largest value has no DST modifier
  var tzd:Number = Math.max( d1.timezoneOffset, d2.timezoneOffset )
 
  // convert to milliseconds
  return tzd * 60000
}
 
public static function getDST( d : Date ):Number
{
  var tzd : Number = getTimezone()
  var dst : Number = (d.timezoneOffset * 60000) - tzd
  return dst
}

OK, I get how to add offsets.
Let me rephrase the question:

I have to create a single application with a set of 3 clocks, one for EST, one for Central, one for Pacific Time.

The application will be viewed by users in each of these time zones.

I need to be able to display variance from GMT so the time displays accurately regardless of the user's time zone...

so how do I call GMT?

Date.timezoneOffset gives you the number of minutes between UTC and the time as described by the client's machine. My guess is that you would:

- figure out the local time,
- determine the timezone offset for each of the three timezones,
- create three clocks with an initial value defined by UTC,
- apply anoffset to each clock,
- profit

Maybe?

(caveat: Haven't tried this myself. Just off the top of my head.)

fyi: If you output a Date object as a string, you get something that follows this format:
Day Mon DD HH:MM:SS TZD YYYY

TZD is the timezone offset for the local time relative to GMT.

For example, outputting new Date() gives me the following:
Fri Apr 24 10:53:33 GMT-0400 2009

Being on EST, adding 4 hours will give me GMT.





I think.

I used the UTC & just subtracted the hours offset. Seems to work fine.
For example, Montreal time:

onClipEvent (enterFrame) {
time = new Date();
mil = time.getMilliseconds();
m = time.getMinutes();
h = time.getUTCHours()-4;
yul_minutes._rotation = m*6+(s/10);
yul_hours._rotation = h*30+(m/2);
}