title: dos date/time calculation
body: <p>I am working on a project that involves converting data into dos date and time. using a hex editor (Hex Workshop) i have looked through the file manually and and found the values I am looking for, however I am unsure how they are calculated. I am told that the int16 value 15430 corresponds to the date 06/02/2010 but i can see no correlation, also the value 15430 corresponds to the time 07:34:12 but i am lost in how it is calculated. any help with these calculations would be very welcomed</p>