By default, all the numbers and dates in the LSP.expert interface are formatted based on the localisation settings of your browser (if you use Chrome for example, you can access these settings via chrome://settings/languages).

If the dates and numbers are not formatted as expected in the LSP.expert interface, you should thus change the settings of your browser.

If you don't want to do that, you can ask LSP.expert to override these settings with specific localisation settings. To do that, go to Settings > My profile and toggle the Override option.

You can see a preview of how your dates and numbers will be formatted under this option.

Please note: Overriding the localisation settings of your browser will affect the display of your dates but not their input. If when entering a date with a time you want to remove the AM/PM selector, for example, you will have to update the localisation settings of your browser, because that is something that is linked to your browser, and LSP.expert has no control on it.

The same goes for the order of your dates (mm/dd versus dd/mm).