A resident parking permit will only be valid all day in the MINI ZONE that you live.
Your permit will also be valid in any other MINI ZONE for a maximum of three continuous hours from"
towerhamlets.gov.uk/lgnl/transport…
For example, if you live in A1; your permit will be valid for a maximum of three continuous hours in any other A, B, C or D mini zones from the time you first park."
I think before you could park in the same zone all day, for example D1 could park in D2
2/