Replacing a timer delay light switch

[seasickstevie]

... switch off this light via the switch also switches off all other room lights. Hence I'm having to keep switching off and on several times from the mains.

Am I right in thinking you are refering to the circuit breaker in the 'mains' to switch off?
And if you switch off at the circuit breaker then back on again, does that 'reset' the time-lag and leave your troublesome light off?

If so, it sounds like it's an electronic time-lag you've got. But maybe I'm reading it wrongly.

 

[EFLImpudence]

I live in a flat with a shared hallway which has a timer delay light switch. It used to be that you pressed it and it would give you about 20 seconds then switch off. Recently something happened where the light is now permanently on. The mains is in my flat so I switch it off when not in use but that also of course switches all my lights.