I have an ASP.NET, VB.NET Date, and I'm trying to get the number of milliseconds since January 1st, 1970. I tried looking for a method in MSDN, but I couldn't find anything. Does anyone know how to do this?
You can subtract any two
DateTime instances and get
TotalMilliseconds would give you total milliseconds. Sample below.
DateTime dt1970 = new DateTime(1970, 1, 1); DateTime current = DateTime.Now; TimeSpan span = current - dt1970; Console.WriteLine(span.TotalMilliseconds.ToString());
//DateTime.MinValue is 01/01/01 00:00 so add 1969 years. to get 1/1/1970 DateTime.Now.Subtract(DateTime.MinValue.AddYears(1969)).TotalMilliseconds;