c# - How to convert Timestamp to Date?

Given that this looks like a Java timestamp, simply use below:

var dt = new DateTime(1970, 1, 1, 0, 0, 0, 0).AddSeconds(Math.Round(1372061224000 / 1000d)).ToLocalTime();
Console.WriteLine(dt); // Prints: 6/24/2013 10:07:04 AM

Finally i found how to convert time stamp to Date & Date to time stamp . I found some places in project people keep date as time stamp for get difference quickly. so in this case they use to keep the table column as Int or time stamp. now the problem is that in the application while showing the data, you need to convert it into date variable. So for that we can use the following code to convert time stamp to Date

int ts = 1451174400;
DateTime dt = new DateTime(1970, 1, 1, 0, 0, 0, 0).AddSeconds(ts).ToLocalTime();
string formattedDate = dt.ToString("dd-MM-yyyy");

Now you can get any date format from this variable.

In the second case if you want to convert Date to time stamp then check the following code.

int ts = (dt.Ticks - 621356166000000000) / 10000000;

Where dt is the date time variable & holding a date value.

Maybe replace this :

    foreach (XmlNode node in cNodes)
{
    //I'm getting this "1372061224000" in comment-date
    string comment_date = node["creation-timestamp"].InnerText;
}

by :

foreach (XmlNode node in cNodes)
{
    Datetime comment_date = new DateTime(Convert.ToInt32(node["creation-timestamp"]);
}