Stuart Brooks wrote:

I think it is a great limitation of most (if not all) AWS weather software
interfaces that you are stuck with a non-standardised 00-24 daily cycle,
though perhaps that means it is the new standard....

My software, Cumulus, allows the use of an 09z-09z day.
--
Steve Loft
Sanday, Orkney. 5m ASL. http://sanday.org.uk/weather
Free weather station softwa http://sandaysoft.com/