Hi, There has been a long standing issue with the "Ness M1 C-Bus Interface" where it can generate clock messages but it doesn't play by the "Who should be the Time Master" rules and assumes it is the Time Master and messes things up as it gets the time wrong during daylight saving... The upgrade at the time was to disable the sending of time messages to C-Bus but does anyone know if this has ever been corrected? Alex Shepherd