security - How to schedule Motion detection

I've just discovered Motion and it works like a charm.. My only problem is that I'd like it to be active only during night-time, but there's no parameter for scheduling..

I think I could write a program that would control Motion via its "HTTP API", but I was wondering if someone had already done that, or if there's an alternative solution.

Thanks in advance :)

Answer

For this simple task, Motion's HTTP API can be used directly with wget or similar..
Straight from the FAQ:

0 9 * * * root /usr/bin/lwp-request http://localhost:8080/0/detection/start > /dev/null 
0 18 * * * root /usr/bin/lwp-request http://localhost:8080/0/detection/pause > /dev/null