Deserializing Client-Side AJAX JSON Dates

"/Date(1221644506800-0700)/"

Sys.Serialization.JavaScriptSerializer.deserialize("/Date(1221644506800-0700)/")

new Date(parseInt(value.replace("/Date(", "").replace(")/",""), 10))

var s = "/Date(1221644506800-0700)/";
var m = s.match(/^/Date((d+)([-+]dd)(dd))/$/);
var date = null;
if (m)
  date = new Date(1*m[1] + 3600000*m[2] + 60000*m[3]);

Sys.Serialization.JavaScriptSerializer.deserialize(""\/Date(1221644506800)\/"")

Script.Serialization.JavaScriptSerializer jss = new Script.Serialization.JavaScriptSerializer();
string script = string.Format("alert(Sys.Serialization.JavaScriptSerializer.deserialize({0}));", jss.Serialize(jss.Serialize(DateTime.Now)));
Page.ClientScript.RegisterStartupScript(this.GetType(), "ClientScript", script, true);

var serializedDateTime = "/Date(1271389496563)/";
document.writeln("Serialized: " + serializedDateTime + "<br />");

var toDateRe = new RegExp("^/Date\((\d+)\)/$");
function toDate(s) {
    if (!s) {
        return null;
    }
    var constructor = s.replace(toDateRe, "new Date($1)");
    if (constructor == s) {
        throw 'Invalid serialized DateTime value: "' + s + '"';
    }
    return eval(constructor);
}

document.writeln("Deserialized: " + toDate(serializedDateTime) + "<br />");

String.prototype.dateFromJSON = function () {
    return eval(this.replace(//Date((d+))//gi, "new Date($1)"));
};

var date = new Date(parseInt(jsonDate.substr(6)));

new Date(1221644506800)