System.IO.FileSystem.GetLastAccessTime C# (CSharp) Метод

        public abstract DateTimeOffset GetLastAccessTime(string fullPath);
        public abstract void SetLastAccessTime(string fullPath, DateTimeOffset time, bool asDirectory);

 public static DateTime GetLastAccessTimeUtc(string path)
 => FileSystem.GetLastAccessTime(Path.GetFullPath(path)).UtcDateTime;