get datetime in milliseconds c# code example
Example 1: c# get current milliseconds
//Get now in milliseconds
long milliseconds = DateTimeOffset.Now.ToUnixTimeMilliseconds();
Example 2: c# get total milliseconds from datetime
yourDateTime.ToUniversalTime().Subtract(
new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc)
).TotalMilliseconds