Leg of lamb - cooking time?

[merlin]

Help please!!!

Have 2 lamb legs to cook today together.
Similar in weight - 2.2kg and 2.4kg.

How long in the oven?

Thanks and Happy Easter!!!

Here. Sorry I am no good at maths so the working out you will have to do yourself. I just tend to cook mine untill it's done.

It's actually in the oven on very low to start off and I'll turn it up closer to dinner being served.