Charlie123
I assume this is in regard to a PIP claim
If you are unable to reliably complete an action more than 50% of the time then you should be regarded as unable to do it, it is possible to limit the number of hours that should be considered, for example it is reasonable to shorten the day to your waking hours and even further if there are activities that would reasonably be expected to be carried out at particular times of the day e.g. on getting up.
However, taking your example as posted, I think it unlikely that you would score any points. The obvious comments are; what is your mobility for the rest of the time and are there things that you need to do that can only be done when your mobility is nil?
Have a look at our PIP Claim guide for a more detailed explanation of "reliably" and "for the majority of the time".
www.benefitsandwork.co.uk/help-for-claimants/pip Gordon