It’s a Bank Holiday in the UK, which is always a good reminder to take time off. It might not be today for you: it may be that your situation means you have to work, research or do something that doesn’t allow for a significant element of rest or relaxation.
But you need it.
If your viva is somewhere on the horizon, taking a day off to do something else entirely can be helpful. Take a day for you, before you do anything for your viva. Pause, relax your thinking, rest your mind, leave – for now – all the prep and hustle that still needs to happen.
You have time to do all of that later and a need to look after yourself now. Take time for yourself as part of getting ready for your viva.