For applications which are not network connected on hardware such as the Raspberry Pi without a RTC, will you use the system clock or your own RTC hardware to read time????

Get current time string

DateTime.Now.ToString("HH:mm:ss")

DateTime.Now.ToString("HH:mm:ss", System.Globalization.DateTimeFormatInfo.InvariantInfo)

Get current time as variables

	System.DateTime DateTimeNow = DateTime.Now;
	int Year = DateTimeNow.Year;
	int Month = DateTimeNow.Month;
	int RtcDayOfMonth = DateTimeNow.Day;
	int Hour = DateTimeNow.Hour;
	int Minute = DateTimeNow.Minute;
	int Second = DateTimeNow.Second;
	int Millisecond = DateTimeNow.Millisecond;