I uninstalled my current datentime.
I checked the /usr/bin directory, and made sure "datentime.py" was removed, and it was.
Then I re-installed datentime_1.0.8_armv5tel.ipk
I had to set the zone and clock and reboot twice, to make my time display correctly.
On the first reboot, it lost -6 hours, setting the clock again and rebooting resulted in a correct clock display.
I'm not sure if this will stay this way, since I haven't rebooted again.
Oh BTW, I can tell if the clock is going to "hold it's correct value" when rebooting.
Once I exit 'X' and type in reboot, there is a line that displays the time.
EDIT:
meanie, on your website you say one should reboot after installing/uninstalling a lot of pkgs.
I have been trying out a lot of pkgs, and this is the reason I reboot more that once a month.