[Edit]

C# / .NET - get current machine time in nanoseconds

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Created by:

Dharman

518

This posts is an answer for a common question:

How to get java System.nanoTime() in C# / .NET?

It is possible in following way.

Getting nano time with `Stopwatch.GetTimestamp` method example

Edit

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using System.Diagnostics;
​
public static class TimeUtils
{
    public static long GetNanoseconds()
    {
        double timestamp = Stopwatch.GetTimestamp();
        double nanoseconds = 1_000_000_000.0 * timestamp / Stopwatch.Frequency;
​
        return (long)nanoseconds;
    }
}

Example:

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long t1 = TimeUtils.GetNanoseconds();
​
Thread.Sleep(1000);
​
long t2 = TimeUtils.GetNanoseconds();
long dt = t2 - t1;
​
Console.WriteLine(t2 + " - " + t1 + " = " + dt + " ns");

Output:

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193915543540248 - 193914543003928 = 1000536320 ns

Notes:
Stopwatch.GetTimestamp returns time from timer mechanism - system up time.
The best application of this time could be measuring how much time took some operations.