Malcolm, I was having trouble with my clock loosing time
in hourly increments, this is what worked for me, right
click on the time, open adjust time & date in the time
zone make sure the setting is correct for your time
zone,i.e. eastern, pacific, etc, on internet time I set
my clock to be synchronized with
www.time.nist.gov. It is
exactly correct now and I can updtate it if necessary by
clicking on update now.
Lithium batteries usually last longer than five years, if
your battery is going bad you will experience other
problems in conjunction with time.