get client machine timezone in asp.net mvc

Question

How to get the time zone id (ex.: Central Standard Time) of the client machine in asp.net mvc?

Answer 1

If you have troubles showing time on the client side then you can do the following I wrote an extension to DateTime class that does conversion for me

public static MvcHtmlString ToClientTime(this DateTime dateTime){
   var builder = new TagBuilder("span");
   builder.MergeAttribute("data-utc-time",dateTime.ToString());
   builder.SetInnerText(string.Format("{0} (UTC)", dateTime.ToString()));
   return new MvcHtmlString(builder.ToString());
}

then I've added a javascript file and let momentjs handle the conversion on the client side

$(document).ready(function() {
  $("[data-utc-time]").text(function () {
    var utcTime = $(this).attr("data-utc-time");
    return moment.utc(utcTime, 'DD.MM.YYYY HH:mm').local().format('DD.MM.YYYY HH:mm');
});