UTC dates gone bad

scripting to get the time difference between two dates

[natty]

sorry , i know ive posted this question before, ([webmasterworld.com ]) but it seems to have reared its ugly head once more, still no solution. im at my wits end, sadly i cant get on an IRC svr for a chat on there, and google groups take days, and we cant get newsgroups from work anyhow.
YAY.. how i love our techie dudes..

nonetheless.
the problem, for which any help will be gratefully recieved.

the function

function dayOfYear(osD,selD){ 
 var theMonth; 
 todayTime = selD.getTime(); 
 startTime = osD.getTime(); 
 DoY = parseInt((todayTime - startTime))/86400000; 
 if (DoY%1!= 0){ 
 DoY = DoY-(DoY%1); 
 } 
 theMonth = selD.getMonth() 
 DoY += 1; 
 return DoY; 
} 

osD is an offset date
selD is another date
both constructed via
osD = new Date(yr,mnth,day,12);

the idea of the function is to get the number of days between osD and selD.
sadly when selD is in the nov-mar bracket (winter time clocks) the DoY gets one day out.

WHY!?

[dmorison]

Hi natty,

Just did a quick Google search and found a page that might help. It's about solving the Y2K problem and has a JavaScript function to calculate the number of days between two dates.

I've sent you a sticky with the URL.

Cheers.

[natty]

thank you thank you thank you.
i dont know why , and i dont really care, but it seems to work a treat.
if i woz a lady, ive offer to mother your children.
sadly im not, so youll have to make do with a thousand thankyous..

cheers matey

nat

[tedster]

Thanks to dmorison for sending me the address for the successful script. For anyone one who wants to check it out, here it is:

[developer.irt.org...]

[Xuefer]

alert(new Date(date1.valueOf() - date2.valueOf()).getUTCFullYear) // this is time-diff, use whatever getUTC***