The JavaScript Source: Math Related: How Long

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How Long

Find how long in years and days between today and any date past or future. How long since Elvis died? How long till Christmas? Will not accept invalid dates such as February 30. Assumes the usual Gregorian calendar in common use. IE only.

Time Until or Since

Figure out how long in years and days between Today and any Other Date.
[Usual Gregorian calendar assumed
Century years are leap years only if divisible by 400.]

The JavaScript Source: Math Related: How Long
Simply click inside the window below, use your cursor to highlight the script, and copy (type Control-c or Apple-c) the script into a new file in your text editor (such as Note Pad or Simple Text) and save (Control-s or Command-s). The script is yours!!!


  <HEAD> <SCRIPT LANGUAGE="JavaScript">      </script> </HEAD>  <BODY onLoad="frm.day.focus()">  <div align="center"> <h2>Time Until or Since</h2> Figure out how long in years and days between <b>Today</b> and any <b>Other Date</b>.<br> [Usual Gregorian calendar assumed<br> Century years are leap years only if divisible by 400.] </div> <div align="center"> <form name="frm" action="GET" onreset="frm.day.focus()"> Enter a date — <b>Day, Month and Year</b> — in numbers:<br> (January=01, ... December=12)<br> dd      mm      yyyy<br> <input type="Text" name="day" value="" maxlength="2" size="2"> <input type="Text" name="month" value="" maxlength="2" size="2"> <input type="Text" name="year" value="" maxlength="4" size="4"> <br> <input type="Button" name="Calc" value="Calculate How Long" onclick="howLong(year,month,day)"> <br> <input type="text" name="timeBetween" size="40"> <br> <input type="RESET" value="Clear"> </form> </div> <p><center> <font face="arial, helvetica" size"-2">Free JavaScripts provided<br> by <a href="http://javascriptsource.com">The JavaScript Source</a></font> </center><p> 
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