Every single clock, even those that are air gapped. Countdown timers lose a minute, stopwatches add a minute. Biological clocks aren’t affected.
Every single clock, even those that are air gapped. Countdown timers lose a minute, stopwatches add a minute. Biological clocks aren’t affected.
We still haven’t found the 297 years from the Middle Ages.
Around 1000AD there were no real clocks yet though. Spring driven clocks appeared in the 1500’s and pendulum clocks in 1656