Joey Mazzarelli

• Blog
• About
• Projects

17 Comments on “Easy Date parsing with JavaScript”

1. 
   1 Bill said at 9:08 am on November 26th, 2008:

   Here is a failure case that might be considered valid:

   OPTIONS: MDY
   INPUT: 02091972

   If I put any kind of delimiter between 09 and 1972 (space, -, /) it parses (though not always correctly)

   If I put in a delimiter betwen 09 and 1972 (0209-1972) even with OPTIONS: MDY it parses as Nov 9, 1972 – the day part is ignored.

   i figure if the string can be parsed and contains more than6 characters then all three portions to be parsed have been provided and should be parsed according to the OPTIONS value

   In all of these examples “strict” is turned off

2. 
   2 Joey said at 9:14 am on November 26th, 2008:

   Bill,
   Thanks, those are a couple more cases I can add to it.

3. 
   3 John Lateral said at 7:42 am on December 17th, 2008:

   Why is:

   MDY
   12/50/2004

   accepted as a valid date? The 50. december does not – as far as I know – exist in any normal calendar. Is it possible to have the function only accept VALID dates?

4. 
   4 Thor said at 5:11 am on February 1st, 2009:

   you could run the date through this code to have a check against real date

   http://snipplr.com/view/7875/javascript-validate-date/

5. 
   5 esoseRirl said at 12:15 pm on February 24th, 2009:

   Thank you!

6. 
   6 Peter Snyder said at 2:32 pm on March 20th, 2009:

   Thanks for this code. I’ve made a couple of additions to make the code with SQL date type 109, ie something like Dec 30 2006 12:38:54:840AM.

   The difference is just a couple of lines. Heres the patch, if you’re interested (i’d also be happy to email it, if you prefer)

   — date.js 2009-03-20 16:57:29.000000000 -0500
   +++ date_new.js 2009-03-20 16:44:47.000000000 -0500
   @@ -36,7 +36,7 @@

   var find_time = function (norm) {
   var obj = {date:norm, time:”};
   - obj.time = norm.replace(/^.*-(\d\d?(:\d\d){1,2}(-(AM|PM))?)-.*$/, ‘$1′);
   + obj.time = norm.replace(/^.*-(\d\d?(:\d\d){1,2}(:\d\d\d)?(-(AM|PM))?)-.*$/, ‘$1′);
   if (obj.time == obj.date)
   obj.time = norm.replace(/^.*-(\d\d?-(AM|PM))-.*$/, ‘$1′);
   if (obj.time == obj.date) obj.time = ”;
   @@ -97,19 +97,20 @@
   };

   var create_absolute = function (obj) {
   -
   var time = obj.time.replace(/[-APM]/g, ”);
   var parts = time.split(‘:’);
   parts[1] = parts[1] || 0;
   - parts[2] = parts[2] || 0;
   + parts[2] = parts[2] || 0;
   + parts[3] = parts[3] || 0;
   var ihr = parseInt(parts[0], 10);
   if (obj.time.match(/-AM-/) && ihr == 12) parts[0] = 0;
   else if (obj.time.match(/-PM-/) && ihr < 12) parts[0] = ihr + 12;
   parts[0] = (“0″ + parts[0]).substring((“0″ + parts[0]).length – 2);
   parts[1] = (“0″ + parts[1]).substring((“0″ + parts[1]).length – 2);
   parts[2] = (“0″ + parts[2]).substring((“0″ + parts[2]).length – 2);
   - time = parts.join(‘:’);
   -
   + time = parts[0]+”:”+parts[1]+”:”+parts[2];
   + var millisecs = parts[3];
   +
   var strict = defaults.opts.strict;
   if (!obj.year && !strict) obj.year = (new Date()).getFullYear();
   var year = parseInt(obj.year, 10);
   @@ -129,6 +130,7 @@

   var date = new Date();
   date.setTime(Date.parse(year + ‘/’ + month + ‘/’ + day + ‘ ‘ + time));
   + date.setMilliseconds(millisecs);
   return date;
   };

7. 
   7 Nathan said at 4:07 am on March 31st, 2009:

   Hi, found a problem. If you put in 31/02/2009 (DMY) it changes it to the 3rd of March, which is essentially correct. But it should fail rather than seeming to make up a date. This will happen if you put more days than within a month for any rubbish date.

8. 
   8 Joey said at 7:59 am on March 31st, 2009:

   Nathan:

   This is actually something I like. It allows me to do “math” on dates easily.

   I have enough comments here that I need to get around to implementing/fixing, and maybe when I finally do, I’ll include that as an option to reject “rubbish dates”.

   Thanks.

9. 
   9 une6 said at 5:45 am on December 6th, 2009:

   best function ever… i’ve been looking for this ever since. good job

10. 
    10 Qrilka said at 1:32 am on February 10th, 2010:

    console.log(Date.fromString(’01/12/10′, {order: ‘DMY’, strict:true}));
    //Thu Dec 13 2001 00:00:00 GMT+0300 (MSK)

    FAIL

11. 
    11 Joey said at 8:42 am on February 10th, 2010:

    I’ll have to look into that. I still have some changes from Peter that I need to put into it to. Thanks.

12. 
    12 Joey said at 11:15 pm on February 10th, 2010:

    I have implemented Peter’s fix, and fixed another bug in the parsing.

    Qrilka, I got a bad date in that example, but it was a different bad date. Maybe this fix will fix it for you too.

    Anyway, I have moved the code to BitBucket.org, and you can find it at:

    http://bitbucket.org/mazzarelli/js-date/downloads/

13. 
    13 prashantchalise said at 11:45 pm on June 13th, 2011:

    Thanks for the issue and thanks for the reply. @Thor

14. 
    14 Ajman said at 12:33 am on August 24th, 2012:

    console.log(Date.fromString(‘Sept 5th, 2006 12:34:56 am’));
    // Tue Sep 05 2006 00:34:56 GMT-0600 (MDT)

    The above don’t work.
    My Input : ‘Aug 5, 212 12:34:56 am’
    Output which i get : 24-Aug-2012 00:00:00 PM

    Time is not reading from it. i need even second

15. 
    15 Gxwbjsbl said at 3:24 am on April 8th, 2013:

    How would you like the money? disinibiti
    no fisting at all

16. 
    16 Joseph said at 8:47 pm on April 9th, 2013:

    I’m a trainee free little lolitas xxx Would like to see her doing Hardcore stuff, not just Sucking or be licked. That Girl has a great ass for Anal too

17. 
    17 Benjamin said at 8:49 pm on April 9th, 2013:

    Where do you come from? russian lolita jpg xxx any body notice her earing is like floating

Don't be shy...