The VPS system clock is synced with the dom0 (host) clock unless an independent “wall” clock is specified. This is done by performing the following:

# echo 1 > /proc/sys/xen/independent_wallclock

To make this change persist on boot, edit /etc/sysctl.conf and add the following on a new blank line:

Then you may set the time as you desire, or sync it with an NTP server, e.g.:

# rdate -s rdate.cpanel.net