Here are all the clocks I have to reset twice a year for daylight-saving time:
microwave
range
coffeemaker
bathroom clock
Lucy’s radio
Lucy’s sound machine
our radio
our sound machine
Jon’s three watches
Ann’s two watches
classic clock on piano
thermostat
timer for stair lights
space heater
Toyota
cordless phone base
2 digital cameras
WordPress installations
thermometer/hygrometer
Notable: the interface on *no two* of those devices is the same! I wish at least some of them were the same, let alone that the ones that track dates might know about DST and reset themselves!
Some others do know about DST and reset themselves:
5 Macs
2 mobile phones
3 iPods
landline caller ID