My best is 30 seconds off. I click 59 times really fast just before the last commercial.
Humor welcome.
I have an electric clock that habitually run fast, and I have to reset it once a week.
I use an Echo dot as my bedroom clock and alarm. it is always synched via the internet to the atomic clock so it is always accurate..
I use my phone.
I threw my clock radio out in the back field in 1978. It is now a sundial. It’s accurate to the hour during daylight.