It is possible to schedule alt.binz to connect or disconnect at any time you want by making use of the altbinz_status.xml file.
Once enabled (Setup/Misc #2/Enable status in XML file), you can use Powershell to toggle the 'connect' value between 'true' and 'false'.
The following paths refer to Windows 7, edit as necessary for XP or other.
Save the following code to a file called 'disconnect.ps1'.
$xml = New-Object XML
$xml.Load("C:\Users\username\AppData\Local\Alt.Binz\altbinz_status.xml")
$xml.altbinz | Where-Object { $_.connect -eq 'true' } | ForEach-Object { $_.connect = 'false' }
$xml.Save("C:\Users\username\AppData\Local\Alt.Binz\altbinz_status.xml")
Swap 'true' and 'false' and save it as 'connect.ps1'.
Then, at a command prompt, run
powershell disconnect.ps1
to disconnect or
powershell connect.ps1
to connect.
You can use the Task Scheduler in Windows to schedule these to run at any time you want.