Question about April’s daily homework

Hey! I’m super excited for this April work. Just two quick questions:

1. On the calendar for April and the daily plan are writing specific times we are doing each thing, like 2pm or are we writing how long it will take us, like 2 hours?
2. I want to plan the whole month of April as much as possible, but I don’t usually know parts of my work schedule in advance because it is on an as needed basis. Is it okay to plan as I know more or do I have to plan for the whole month now?