Fix or reset “Automatic Date & Time” in Ubuntu 18.10

I have an issue where the date and time is set wrong when I use Automatic Date & Time in Settings to set the time from the internet. I’ve attached screen shots to show what happens when I enable the feature.

I’ve booted from a Live USB and enabled the feature and it worked fine.

How can I fix this? Or, what apps and configs are involved in this feature and how can I see if they are corrupt or just reinstall the package(s) and config file(s) to default?

Automatic Date & Time Off Automatic Date & Time Off

Automatic Date & Time On Automatic Date & Time On