First issue
In central Australia, the time zones are offset by 30 min from UTC.
Time zone in Darwin NT (GMT+9:30) & Time zone in Adelaide SA (GMT+9:30)
AWSs report internationally:
a) hourly on the hour and
b) 3-hourly on the half-hour.
I have put in 2 reporting schedules and ticked both for international. Have a look at 0-20000-0-94127
Q1: How should these stations schedule be recorded in OSCAR/Surface to reflect correctly in WDQMS?
Next issue
Manual stations often report at only at 9am and 3pm local time, or 23Z and 5Z.
Have a look at 0-20000-0-94937 temperature as an example.
Q2: What is the correct/preferred way to report the schedule?