I'm new to ML and still working on getting time lapse working using a slow frame rate. 0.6 fps is the slowest but I get an assembled movie out of the camera. My problem is exposure control.
For your application I have had success in taking individual pictures using INTERVALOMETER in SHOOT tab. It will take shots from 1 sec to 8 hr. You should use manual settings as any change between shots cause flicker in your final movie. If you have varying light, set it for the middle exposure.
Hope this helps.
David