Days Since

Chris Hallberg Jun 26, 2006

This script displays the number of years, months, and days since a selected event. The output can easily be formatted using CSS.

since September 11, 2001

The JavaScript Source: Time & Date : Days Since

Simply click inside the window below, use your cursor to highlight the script, and copy [Control]+C the script into a new file in your text editor (such as Note Pad) and save [Control+S]. The script is yours!!!

/* This script and many more are available free online at
The JavaScript Source :: http://www.javascriptsource.com
Created by: Chris Hallberg :: http://kanoa.heavenfromhell.com */

function time() {
  // Enter the month, day, and year below you want to use as
  // the starting point for the date calculation
  var amonth = 9
  var aday = 11
  var ayear = 2001

var x = new Date()
  var dyear
  var dmonth
  var dday
  var tyear = x.getFullYear()
  var tmonth = x.getMonth()+1
  var tday = x.getDate()
  var y=1
  var mm=1 
  var d=1 
  var a2=0 
  var a1=0
  var f=28

if ((tyear/4)-parseInt(tyear/4)==0) {
    f=29
  }

m = new Array(31, f, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31)

dyear = tyear-(ayear)

dmonth = tmonth-amonth
  if (dmonth<0) {
    dmonth = dmonth+12
    dyear--
  }

dday = tday-aday
  if (dday<0) {
    var ma = amonth+tmonth
    if (ma>12) {ma = ma-12}
    if (ma=0) {ma = ma+12}
    dday = dday+m[ma]
    dmonth--
  }

if (dyear==0) {y=0}
  if (dmonth==0) {mm=0}
  if (dday==0) {d=0}
  if ((y==1) && (mm==1)) {a1=1}
  if ((y==1) && (d==1)) {a1=1}
  if ((mm==1) && (d==1)) {a2=1}
  if (y==1){
  document.write(+dyear+" Years") }
    if ((a1==1) && (a2==0)) {document.write(" and ")}
    if ((a1==1) && (a2==1)) {document.write(", ")}
    if (mm==1){
    document.write(dmonth+" Months")
  }
  if (a2==1) {document.write(", and ")}
  if (d==1){
    document.write(+dday+" Days")
  }
}

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