I want to limit transmission to work at 02:00 AM untill 08:00. How?
The Speed Limit in Transmission throttles the upload/download speeds during the time set. What you want to do is set the upload/download speed values to 0 and implement that starting at 0800 and end at 0200. That should deactivate all uploads/downloads starting at 8am until 2am the following day.
I was going to use the above scheduled throttling, but thought of something additional and that is to just use the cron daemon via a start and stop: (e.g. Add the following to cron jobs via
* 2 * * * sudo service transmission-daemon start * 8 * * * sudo service transmission-daemon stop
for you 2am-8am schedule. Perhaps even start it a little (5 minutes?) earlier/later?
The only problem I see from this though, is that the service won't be running during the day, when you want to add new torrents. So you'd have to start/stop manually whenever you are adding torrents (per "session")
Depending on your habits, this may/may not be convenient...