I have an AF3500EF and an AF3500EM, connected by the e'net cable. I like to have the AF3500EF displaying local time (NZDT = GMT+13, NZST = GMT+12) with the AF3500EM displaying GMT (cos ATC talk in GMT).

I've noticed that when I'm flying before 1200hrs local, while the local time is displayed correctly on the AF3500EF the GMT shown on the AF3500EM is always wrong. Netsyncing from the AF3500EF to the AF3500EM does not fix the problem. Note this is not an issue when local time is after 1200 hrs.

Is this a wee bug or am I doing something wrong?