Timestamp validation

Posted on 2004-03-23
Last Modified: 2012-05-04

  I have Timestamp in mm-dd-yyyy HH:MI:ss  format, which will be entered in TextBox.
I wanted to validate it on form submit.

I want Timestamp validation code please...!!!

Question by:mvkraju
  • 2
  • 2
LVL 16

Expert Comment

ID: 10661633
do you just want to make sure it is in the correct format? or validate a specific time and date?

Author Comment

ID: 10662117
just it's in the correct format.
I mean say 'mm' should be between 1-12 only and 'dd' sould be based on month.
HH should be 0-23 .. etc.
LVL 12

Accepted Solution

lil_puffball earned 50 total points
ID: 10662302
Here's a script:

var mdays=new Array(31,28,31,30,31,30,31,31,30,31,30,31);

function valid(time){
time=time.split(' ');
if(time.length!=2){return false;}
if(time[0].length!=3){return false;}
if(time[1].length!=3){return false;}
//validate month
if(isNaN(time[0][0]*1)||time[0][0]<1||time[0][0]>12){return false;}
//validate year
if(isNaN(time[0][2]*1)){return false;}
//validate hours
if(isNaN(time[1][0]*1)||time[1][0]<0||time[1][0]>23){return false;}
//validate minutes
if(isNaN(time[1][1]*1)||time[1][1]<0||time[1][1]>59){return false;}
//validate seconds
if(isNaN(time[1][2]*1)||time[1][2]<0||time[1][2]>59){return false;}
//validate days
if(isNaN(time[0][1]*1)||time[0][1]<1){return false;}
  if(time[0][1]>mdays[time[0][1]-1]){return false;}
  if(leapYr(time[0][2])){if(time[0][1]>mdays[1]+1){return false;}}
  else{if(time[0][1]>mdays[1]){return false;}}
//else return true
return true;

function leapYr(yr){
if(yr%400==0 || (yr%100!=0&&yr%4==0)){return true;}
return false;

<input type=text name=time>
<input type=button onclick="if(valid(this.form.time.value)){alert('Valid!');}else{alert('Invalid.');}" value=Go>

Author Comment

ID: 10667281
good job. excellent!
LVL 12

Expert Comment

ID: 10671789
Thanks for the points and the A. :)

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