Hello,
It means that your hosting server and your Joomla are not configured with the same timezone.
It's unfortunately a common Joomla issue and your time shifting should be visible in other components than HikaShop.
You should check your Joomla global configuration and your hosting settings so they will use the same timezone settings.
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.