Changing Date and Time Format in reports.

We've recenly begun to use SolarWinds / Orion and have noticed something odd when we use scheduled reports.

When we design and preview a report, any date columns are formatted correctly (UK date and time format). However, when those reports run on a schedule and are output as a pdf via email, the date is displayed in US format.

In addition - both the Client's browser and the server settings are set for UK time. 

Has anyone else experienced this and is there a way to correct the change in format when the reports are output?

Many thanks in advance.