You can configure KGet to perform transfers at a specific time.
Click+ . All transfers inserted from this point are not started immediately but are queued.
To start the clock, double-click the entry then click.
Enter the day, month, year, and time to start the transfer, click theicon, then close the dialog.
After making the desired settings for all your transfers, click+ to set KGet back in online mode.
The transfers should start at the specified times.