We have a Sharper Image Atomic Big Digit Clock with In/Outdoor Temperature. It picked up the standard time to daylight savings time shift perfectly yesterday morning.
This morning, though, I seemed to be running 10 minutes late. The clock was saying 06:56, when I was convinced it earlier than that. I check my watch; 06:46. Cooker clock, thermostat timer, microwave, NTP-synch’ed Linux laptop; all 06:46.
On resetting the clock, and letting it faff about for a few minutes while it listened to the NIST radio signal from Boulder, it got the time right. I guess there must’ve been a duff signal came through in the night. That’s what you get for blindly trusting technology.