C# / .NET - DateTime.Now precision

Using DateTime structure in C# / .NET it is possible make operations with maximal precision 100 ns, so it is impossible to see difference during operating on times that are smaller than 100 ns.

DateTime.Now property precision example

DateTime now = DateTime.Now;

Console.WriteLine($"{now:o}");

Output:

2019-08-20T21:38:06.2885653+01:00

Where:

• 2019 - year
• 08 - month (August)
• 20 - day of month
• 21 - hour
• 38 - minute
• 06 - second
• 288 - millisecond part (from: ...2885653...)
• 565 - microsecond part (from: ...2885653...)
• 300 - nanosecond part (from: ...2885653...)
• +01:00 - time offset (GMT+1)

Note: as it has been shown it is possible only to get multiple of one hundred of nanoseconds of DateTime. 

References

1. DateTime.Now Property - Microsoft Docs