C# version of Javascript Date.getTime()

Question

What is the best way in c# to get the same result of javascript date.gettime() call?

The getTime() method returns the number of milliseconds since midnigh

Answer 1

The Java and JavaScript Date.getTime() methods return the number of milliseconds since 1 Jan 1970 00:00:00 GMT.

Since .NET represents dates in Ticks (1 Tick = 0.1 nanoseconds or 0.0001 milliseconds) since 1 Jan 0001 00:00:00 GMT, we must use a conversion formula where 621355968000000000 is the offset between the base dates in Ticks and 10000 the number of Ticks per Millisecond.

Ticks = (MilliSeconds * 10000) + 621355968000000000
MilliSeconds = (Ticks - 621355968000000000) / 10000