How long can you park on a single yellow line in the UK?
There's no single answer — it depends entirely on the time plate. Here's how to find it and what it means.
There is no fixed time — it depends on the plate
A single yellow line on its own does not tell you the restriction hours. You must find the time plate — a small black-and-white sign attached to a nearby post or wall showing the days and times when waiting is prohibited. Only during those times is parking on the yellow line illegal.
Outside the restricted hours
Outside the hours shown on the time plate, you can usually park on the yellow line for as long as you like — unless another sign overrides it (for example, a residents' permit bay that covers the same area after hours). There is no national time limit for single yellow line parking outside controlled hours.
What if I can't find a time plate?
If you are inside a Controlled Parking Zone (CPZ) — indicated by an entry sign as you entered the street — the zone hours apply even if there's no individual time plate on the line. If you're not in a CPZ and genuinely can't find a time plate, the restriction technically cannot be enforced, but this is rare.
Loading on a single yellow line
Parking and loading are separate restrictions. A single yellow line controls waiting (parking), but loading is still usually permitted unless there are also yellow kerb dashes (one or two short yellow lines on the kerb itself). Always check for kerb dashes.
Use ParkCheck to check
Photograph the full sign including the time plate and scan it with ParkCheck. The app extracts the restriction hours from the OCR text and explains exactly when you can and can't park.