Hi all,

i want to have a time stamp for logs on a Windows Mobile project. The accuracy must be in the range a hundred milliseconds at least.

However my call to DateTime.Now returns a DateTime object with the Millisecond property set to zero. Also the Ticks property is rounded accordingly.

How to get better time accuracy?
Remember, that my code runs on on the Compact Framework, version 3.5. I use a HTC touch Pro 2 device.

Based on the answer from MusiGenesis i have created the following class which solved this problem:

/// <summary>
/// A more precisely implementation of some DateTime properties on mobile devices.
/// </summary>
/// <devdoc>Tested on a HTC Touch Pro2.</devdoc>
public static class DateTimePrecisely
{
    /// <summary>
    /// Remembers the start time when this model was created.
    /// </summary>
    private static DateTime _start = DateTime.Now;
    /// <summary>
    /// Remembers the system uptime ticks when this model was created. This
    /// serves as a more precise time provider as DateTime.Now can do.
    /// </summary>
    private static int _startTick = Environment.TickCount;

    /// <summary>
    /// Gets a DateTime object that is set exactly to the current date and time on this computer, expressed as the local time.
    /// </summary>
    /// <returns></returns>
    public static DateTime Now
    {
        get
        {
            return _start.AddMilliseconds(Environment.TickCount - _startTick);
        }
    }
}