If you see dates in a specific format (for example, the US way and you want the UK way) and would like to change, you can edit your browser's language.

Go to your browser's settings and pick a different language.

If you're using Chrome, follow the instructions below:

Open the browser settings, and in the advanced section scroll down to find Languages. Open Language and Input Settings and add the language or language+region choice you want from the list available.