On 06/14/2016 06:40 AM, Richard Barmann wrote: > About once a week when I boot up I find the clock is exactly 4 hours slow. I am using Kubuntu 16.04. If I am asking the question in the wrong place please send me to the correct forum. > Thank you. Try changing /etc/adjtime to have LOCAL at the third line(instead of UTC). also man hwclock