Compare DateTime.Ticks with Windows File Timestamp ticks

ticks_comparison.cs

var utcNowTicks = DateTime.UtcNow.Ticks;
const long fileTimestampTicks = 130892436116060259;

var ticksDiff = utcNowTicks - fileTimestampTicks;

var ticksDifTimeSpan = TimeSpan.FromTicks(ticksDiff);
var totalYears = ticksDifTimeSpan.TotalDays/365;

Console.WriteLine(totalYears);