Solved

Conversion of javascript date to c# date

Posted on 2013-02-06
8
384 Views
Last Modified: 2013-02-06
Hi

First off, I have zero experience with javascript, but I need to convert a datetime value in some html into a DateTime in c#.

In the html I see the following:

<script type="text/javascript">
    jQuery(document).ready(function() {
        jQuery('span.LocalTime').localTime('en');
    });
</script>

<td class="headerColored">
<span class='LocalTime' gmt_time='1360039849'></span>
</td>

That "gmt_time" is displaying in the browser as "Feb 05, 2013, 06:50AM"

My timezone is UTC+2

Can anybody help?
0
Comment
Question by:zattz
  • 5
  • 3
8 Comments
 

Author Comment

by:zattz
ID: 38858513
I have found the following function in the source javascript files:

/**
 * Calculates the User's local time using JS.
 *
 */
 
jQuery.fn.localTime = function() {
      this.self = this;
      self.selectedFormat = arguments[0];
      self.section = arguments[1];

      self.format = function() {
        if (self.section == 'billing') {
          switch(self.selectedFormat) {
              case 'en': return '%m/%d/%Y'; break;
              case 'es': return '%d de %n %Y'; break;
              case 'fr': return '%d %f %Y'; break;
              case 'pt': return '%d de %r %Y'; break;
              case 'de': return '%d. %g %Y'; break;
              case 'it': return '%d %t %Y'; break;
              case 'ja': return '%Y/%m/%d'; break;
              case 'zh': return '%Y/%m/%d'; break;
              case 'zh_TW': return '%Y/%m/%d'; break;
              default: return '<nobr>%d %b %Y</nobr>';
          }
        } else if (self.section == 'timeOnly') {
          switch (self.selectedFormat) {
              case 'en': return '%I:%M'; break;
              case 'es': return '%I:%M'; break;
              case 'fr': return '%I h %M'; break;
              case 'pt': return '%I:%M'; break;
              case 'de': return '%I.%M'; break;
              case 'it': return '%I:%M'; break;
              case 'ja': return '%I:%M'; break;
              case 'zh': return '%I:%M'; break;
              case 'zh_TW': return '%I:%M'; break;
              default: return '<nobr>%I:%M</nobr>';
          }
        } else if (self.section == 'board') {
            switch(self.selectedFormat) {
                case 'en': return '%b %e at %J:%M %p'; break;
                case 'es': return '%d de %n %Y %H:%M'; break;
                case 'fr': return 'le %e %f %Y %H h %M'; break;
                case 'pt': return '%e de %r %Y %H:%M'; break;
                case 'de': return '%e. %g %Y %H.%M'; break;
                case 'it': return '%e %t %Y, %H:%M'; break;
                case 'ja': return '%Y/%m/%d  %H:%M'; break;
                case 'zh': return '%Y/%m/%d  %H:%M'; break;
                case 'zh_TW': return '%Y/%m/%d  %H:%M'; break;
                default: return '<nobr>%d %b %Y</nobr> at <nobr>%H:%M</nobr>';
            }
        } else {      
            switch(self.selectedFormat) {
                case 'en': return '%b %d, %Y at %I:%M %p'; break;
                case 'es': return '%d de %n %Y %H:%M'; break;
                case 'fr': return 'le %d %f %Y %H h %M'; break;
                case 'pt': return '%d de %r %Y %H:%M'; break;
                case 'de': return '%d. %g %Y %H.%M'; break;
                case 'it': return '%d %t %Y, %H:%M'; break;
                case 'ja': return '%Y/%m/%d  %H:%M'; break;
                case 'zh': return '%Y/%m/%d  %H:%M'; break;
                case 'zh_TW': return '%Y/%m/%d  %H:%M'; break;
                default: return '<nobr>%d %b %Y</nobr> at <nobr>%H:%M</nobr>';
            }
        }
      };
     
      self.calculateTime = function(gmt) {
        return self.strftime(new Date(parseInt(gmt) * 1000));
      };

      self.strftime = function(theDate) {
        var fmt = self.format();

        for (var s in self.strftime_funcs)
          if (s.length == 1)
            fmt = fmt.replace('%' + s, self.strftime_funcs[s](theDate));
       
        return fmt;
      };
     
      self.strftime_funcs = {
        zeropad: function(n) { return n>9 ? n : '0'+n; },
        A:       function(t) { return ['Sunday','Monday','Tuedsay','Wednesday','Thursday','Friday','Saturday'][t.getDay()] }, //English Days
        F:       function(t) { return ['Dimanche','Lundi','Mardi','Mercredi','Jeudi','Vendredi','Samedi'][t.getDay()] }, //French Days
        N:       function(t) { return ['Domingo','Lunes','Martes','Mi&eacute;rcoles','Jueves','Viernes','S&aacute;bado'][t.getDay()] }, //Spanish Days
        G:       function(t) { return ['Sonntag','Montag','Dienstag','Mittwoch','Donnerstag','Freitag','Samstag'][t.getDay()] }, //German Days
        R:       function(t) { return ['Domingo','Segunda-feira','Ter&ccedil;a-feira','Quarta-feira','Quinta-feira','Sexta-feira','S&aacute;bado'][t.getDay()] }, //Portuguese Days
        T:       function(t) { return ['domenica','lunedì-feira','martedì','mercoledì','giovedì','venerdì','sabato'][t.getDay()] }, //Italian Days
       
        b:       function(t) { return ['January','February','March','April','May','June', 'July','August', 'September','October','November','December'][t.getMonth()] }, //English Months
        f:       function(t) { return ['janvier','février','mars','avril','mai','juin', 'juillet','août', 'septembre','octobre','novembre','décembre'][t.getMonth()] }, //French Months
        n:       function(t) { return ['enero','febrero','marzo','abril','mayo','junio', 'julio','agosto', 'septiembre','octubre','noviembre','diciembre'][t.getMonth()] }, //Spanish Months
        g:       function(t) { return ['Junuar','Februar','März','April','Mai','Juni', 'Juli','August', 'September','Oktober','November','Dezember'][t.getMonth()] }, //German Months
        r:       function(t) { return ['janeiro','fevereiro','março','abril','maio','junho', 'julho','agosto', 'setembro','outubro','novembro','dezembro'][t.getMonth()] }, //Portuguese Months
        t:       function(t) { return ['gennaio','febbraio','marzo','aprile','maggio','giugno', 'luglio','agosto', 'settembre','ottobre','novembre','dicembre'][t.getMonth()] }, //Italian Months
       
        c:       function(t) { return t.toString(); },
        d:       function(t) { return this.zeropad(t.getDate()); },
        e:       function(t) { return t.getDate(); },
        H:       function(t) { return this.zeropad(t.getHours()); },
        I:       function(t) { var h = t.getHours() % 12; if(h == 0){return 12;} return this.zeropad(h); },
        J:       function(t) { var h = t.getHours() % 12; if(h == 0){return 12;} return h; },
        m:       function(t) { return this.zeropad(t.getMonth()+1); }, // month-1
        M:       function(t) { return this.zeropad(t.getMinutes()); },
        p:       function(t) { return this.H(t) < 12 ? 'AM' : 'PM'; },
        S:       function(t) { return this.zeropad(t.getSeconds()); },
        w:       function(t) { return t.getDay(); }, // 0..6 == sun..sat
        y:       function(t) { return this.zeropad(this.Y(t) % 100); },
        Y:       function(t) { return t.getFullYear(); },
        Z:       function(t) {
                    if (t.getTimezoneOffset() > 0) {
                        return "-" + this.zeropad(t.getTimezoneOffset()/60) + "00";
                    } else {
                        return "+" + this.zeropad(Math.abs(t.getTimezoneOffset())/60) + "00";
                    }
                },    
        '%':     function(t) { return '%'; }
      };
     
      return this.each(function() {
          var runTrans = true;
          if (jQuery(this).attr('run_trans')) {
              runTrans = jQuery(this).attr('run_trans')=='yes'?true:false;
          }
          if (runTrans) {
              jQuery(this).html(self.calculateTime(jQuery(this).attr('gmt_time')));
          }
      });
};

jQuery.fn.localAge = function() {
    this.self = this;

    self.getDaysInMonth = function (month, year) {
          return 32 - new Date(year, month - 1, 32).getDate();
    };
   
    self.fixDate = function (day, month, year) {
          var daysInMonth;
         
        if (day <= 0) {            
              month--;
             
              if (month <= 0) {
                  month = 12 + month; // max month + possibly negative month
                  year--;
              }
             
              day = self.getDaysInMonth(month, year) + day; // days in month + possibly negative day
        } else if (month <= 0) {
            month = 12 + month; // max month + possibly negative month
            year--;
           
            daysInMonth = self.getDaysInMonth(month, year);
           
            if (day > daysInMonth)
                day = daysInMonth - (day - daysInMonth - 1);
        }
         
          return { day: day, month: month, year: year };
    };
   
    self.calculateAge = function (gmt) {
        return self.strfage(1000 * parseInt(gmt));
    };
   
    self.strfage = function (timestamp) {
          var today, day, month, year, threshold, newDate, dayOfWeek, startingYear, startingMonth;
       
        today = new Date();
        day = today.getDate();
        month = today.getMonth() + 1;
        year = today.getFullYear();
       
        threshold = new Date(year, month - 1, day).getTime();
       
        if (timestamp >= threshold)
            return mhDictionary.profile.today;
           
        day--;
       
        newDate = self.fixDate(day, month, year);
        day = newDate.day;
        month = newDate.month;
        year = newDate.year;
        threshold = new Date(year, month - 1, day).getTime();
           
        if (timestamp >= threshold)
            return mhDictionary.profile.yesterday;
           
        dayOfWeek = today.getDay();
        if (dayOfWeek > 0) {
            day -= dayOfWeek;
           
            newDate = self.fixDate(day, month, year);
            day = newDate.day;
            month = newDate.month;
            year = newDate.year;
            threshold = new Date(year, month - 1, day).getTime();
             
              if (timestamp >= threshold)
                  return mhDictionary.profile.thisWeek;
        }
       
        day -= 7;
       
        newDate = self.fixDate(day, month, year);
        day = newDate.day;
        month = newDate.month;
        year = newDate.year;
        threshold = new Date(year, month - 1, day).getTime();
           
        if (timestamp >= threshold)
            return mhDictionary.profile.lastWeek;
           
        if (month == (today.getMonth() + 1) && day > 1) { // last week isn't last month
              day = 1;
             
              threshold = new Date(year, month - 1, day).getTime();
                 
              if (timestamp >= threshold)
                  return mhDictionary.profile.overTwoWeeks;

              //if (timestamp >= threshold)
              //    return mhDictionary.profile.thisMonth;
        }
       
        month--;
       
        newDate = self.fixDate(day, month, year);
        day = newDate.day;
        month = newDate.month;
        year = newDate.year;
        threshold = new Date(year, month - 1, day).getTime();
           
        if (timestamp >= threshold)
              return mhDictionary.profile.overTwoWeeks;

        //if (timestamp >= threshold)
            //return mhDictionary.profile.lastMonth;
           
        startingMonth = month;
           
        for (month--; month > 0; month--) {
            newDate = self.fixDate(day, month, year);
            day = newDate.day;
            month = newDate.month;
            year = newDate.year;
            threshold = new Date(year, month - 1, day).getTime();
           
              if (timestamp >= threshold)
                  return mhDictionary.profile.overTwoWeeks;

              //if (timestamp >= threshold)
              //    return mhDictionary.profile.monthsAgo.replace('%MONTHS%', startingMonth - month + 2);
        }
       
        year--;
       
        newDate = self.fixDate(day, month, year);
        day = newDate.day;
        month = newDate.month;
        year = newDate.year;
        threshold = new Date(year, month - 1, day).getTime();
       
        if (timestamp >= threshold)
             return mhDictionary.profile.overTwoWeeks;

        //if (timestamp >= threshold)
        //    return mhDictionary.profile.lastYear;
           
        startingYear = year;
       
        do {
            year--;
           
            newDate = self.fixDate(day, month, year);
            day = newDate.day;
            month = newDate.month;
            year = newDate.year;
            threshold = new Date(year, month - 1, day);
        } while (timestamp < threshold); // let's hope it's not too long ago
           
        //return mhDictionary.profile.yearsAgo.replace('%YEARS%', startingYear - year + 1);
        return mhDictionary.profile.overTwoWeeks;
    };
   
    return this.each(function() {
        jQuery(this).html(self.calculateAge(jQuery(this).attr('gmt_time')));
    });
};
0
 
LVL 42

Expert Comment

by:sedgwick
ID: 38858655
sorry i might misunderstood you but why do u need to convert it to C# datetime in your client side?
do u pass the datetime to C# code server side, and that's where you need the conversion?
0
 

Author Comment

by:zattz
ID: 38858661
No. I have some raw html files I am saving to a database, and don't know how to convert the javascript date "1360039849" to "Feb 05, 2013, 06:50AM"
0
 
LVL 42

Expert Comment

by:sedgwick
ID: 38858776
here:

var d = new Date(0); // The 0 there is the key, which sets the date to the epoch
var utcdate = d.toUTCString('1360039849');

Open in new window


from convert-utc-epoch-to-local-date-with-javascript
0
Better Security Awareness With Threat Intelligence

See how one of the leading financial services organizations uses Recorded Future as part of a holistic threat intelligence program to promote security awareness and proactively and efficiently identify threats.

 

Author Comment

by:zattz
ID: 38858792
I need to convert the 1360039849 into a DateTime in c#
0
 
LVL 42

Accepted Solution

by:
sedgwick earned 500 total points
ID: 38858800
try this in your javascript code:
var d= new Date(); 
d = d.toUTCString(1360039849);
alert(d);

Open in new window

0
 

Author Comment

by:zattz
ID: 38858803
I got it.

var epoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc).AddSeconds(1360039849);

Thank you
0
 

Author Closing Comment

by:zattz
ID: 38858805
Thanks for the help
0

Featured Post

Why You Should Analyze Threat Actor TTPs

After years of analyzing threat actor behavior, it’s become clear that at any given time there are specific tactics, techniques, and procedures (TTPs) that are particularly prevalent. By analyzing and understanding these TTPs, you can dramatically enhance your security program.

Join & Write a Comment

This article will give core knowledge of JavaScript and will head in to your first JavaScript program. I am Durvesh Naik and I am here to deal with this series of JavaScript. I will teach you JavaScript in part wise , as its quite boring to read big…
Nothing in an HTTP request can be trusted, including HTTP headers and form data.  A form token is a tool that can be used to guard against request forgeries (CSRF).  This article shows an improved approach to form tokens, making it more difficult to…
The viewer will learn the basics of jQuery, including how to invoke it on a web page. Reference your jQuery libraries: (CODE) Include your new external js/jQuery file: (CODE) Write your first lines of code to setup your site for jQuery.: (CODE)
The viewer will learn the basics of jQuery including how to code hide show and toggles. Reference your jQuery libraries: (CODE) Include your new external js/jQuery file: (CODE) Write your first lines of code to setup your site for jQuery…

744 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

12 Experts available now in Live!

Get 1:1 Help Now