Given a crystal with oscillator frequency of 32768 Hz and 86400 seconds per 24 hours, I'm trying to determine what formula arrives at 11.6ppm per second. I tried some different calculations but my math skills aren't great.There are 86400 seconds per 24-hour period, putting each second at about 11.6 millionths of the 24-hour period. That puts an error of 1 second per day at 11.6ppm.
Thanks,
J