You mean LibreELEC, right? 
Also, do you mean the time shown at the command line with the "date" command is wrong (most likely UTC), or the time shown in the GUI? The former can be incorrect if upgrading from an older OE installation, while the later should reflect whatever timezone country you specify in the Kodi GUI (ie. Britain (UK)). Note that you'll only see the "Timezone country" option in Settings > Interface > Regional if your Settings level is Standard or higher.
If you've set the correct Timezone country and the time is incorrect at the command line, what is the contents of /storage/.cache/timezone ?
