Leopard/Snow Leopard, have to implement daytime server by using daemon?

I find there is n开发者_JAVA技巧o daytime server available in leopard/snow leopard. And after reading some documents, the approach I can think of is writing a daemon and put it under /System/Library/LaunchDaemons, so that launchd can run it. I wonder if there is a way to just enable the service rather than writing a new one myself? Thanks in advance!

Tianzhou

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Please see my other answer.

It does mean you have to write one yourself but will hopefully streamline the process.