They must be having fun. :) BTW, I remember during one of the first government shutdowns someone at WWV let the WWVB time signal just start sending out random data, screwing up the few 'atomic' clocks available at the time, but more importantly messing with frequency calibration labs all over the US, Canada, and Mexico. I know this because I had built a receiver for the signal to use to calibrate the equipment in my ham radio shack, and since I only lived 50 miles from the transmitter I could hear the harmonic of the transmission on 180 kHz on my LowFer receiver. It was spooky hearing a cornerstone of American technology become erratic.
I think the ' 1second' pulses have been stopped. The microcontroller probably has a different algorithm to handle time corrections on the clock for the minute and hour. They probably wait to do anything with the second hand until the hour and minutes are correct. Otherwise the second hand would be screaming around at the speed of a high-speed motor and the hour arm would still take a long time to get caught up.
They must be having fun. :)
BTW, I remember during one of the first government shutdowns someone at WWV let the WWVB time signal just start sending out random data, screwing up the few 'atomic' clocks available at the time, but more importantly messing with frequency calibration labs all over the US, Canada, and Mexico. I know this because I had built a receiver for the signal to use to calibrate the equipment in my ham radio shack, and since I only lived 50 miles from the transmitter I could hear the harmonic of the transmission on 180 kHz on my LowFer receiver. It was spooky hearing a cornerstone of American technology become erratic.
Is the second hand on this one loose?🤔
I think the ' 1second' pulses have been stopped. The microcontroller probably has a different algorithm to handle time corrections on the clock for the minute and hour. They probably wait to do anything with the second hand until the hour and minutes are correct. Otherwise the second hand would be screaming around at the speed of a high-speed motor and the hour arm would still take a long time to get caught up.