Trying with no humor,
Prior observations showed no difference to when timers where triggering, they were in sink with the time shown in designer. Changing the resolution only resulted to an increase of memory being used up on the CM15, up at least 10% when set to daily. All other functions seemed the same.
Thou when changing the DST on the computer running XP sp3 and unchecked the automatic setting, that resulted in the Time Zone GMT to correct itself to -5.00 EST from my original setting of -4.00, that is incorrect but all had worked before.
One outside light I have set to this timer to come on at Dust and off at Dawn. At present, the light is set to come on at 6.51pm and outside there is still good visible light but noticeably the night has begun to approach, one can say that it will be dark in about an hour or so. The light turns OFF at 7.40am and that is at good light.
Another single light, I have set to come on with an Eagle eye sensor, Dawn to Dusk and that one responds directly with outside light conditions when skies are clear, it turns ON at about 6.55am and OFF 7.35pm.
That had caught my attention. It seems AHP is aware of D/D, when it is officially dark and when it’s the crack of dawn and applies an hour to the that time by subtracting the hour from the GMT setting in the interface. This will allow it to create its own view of Dawn and Dusk so as to allow comfortable light settings and themes for mainly Indoors use. Inside the house the light might have been appropriate to come on at 6.51pm but it could wait an hour or less outdoors.
So as I see it, when using the interface to control your Dawn and Dusk settings, use them for indoor mainly. When needing the outside light to respond then use a sensor to trigger by the light conditions outside. Needless to say, placement of the sensor is critical to its function. Headlights, streetlight, neighbor’s motion sensor lights and even the light you are trying to turn on will be a factor in sensing the difference between Day and Night.
This was only a Test, again no neighbors
or family including WAF was harmed in the making of the Test.
BaBaLou.