Daily usage kWh doesn't match Octopus

Just installed the Glow display.

I'm seeing the the display is reporting my current day usage as much lower than what Octopus is tell me I've used via their API and home assistant.

I suspect this is an issue because we're currently on BST where as Octopus is billing on UTC (GMT).

Is there a way to switch the unit to work in UTC so it matches up?