I agree with Sig....I have Honeywell programmable 5/1/1 day...can't remember the model 8000? maybe....anyway...I had a set that lasted me 20 years and I got tired of reprogramming it twice with every time change (I'd switch the time in March...then three weeks later I'd reprogram the time again in Apr when it switched automatically)...it was programmed for the old Apr/Oct switch...the new ones that I've had for 10 years now switch Mar/Nov...I never have to touch them. I just change the batteries at the Nov time change.
redhawk