How to quickly set the desired system time without using interfaces which hide form you somewhere in the a wm control center? With the switch to summer time from winter time, these simple questions sometimes need googling.
The format used is 24-hours (13:00 instead of 1pm), just replace “MM/DD/YYYY HH:MM:SS” to the correct current time and issue the following:
sudo date -s "MM/DD/YYYY HH:MM:SS"
sudo hwclock -r
sudo hwclock --adjust
sudo hwclock --systohc
KDE widgets should react to that immediately in Fedora 12.