Is it better if I to my to do list separating morning/afternoon/night?

L On P.
It depends on your preference really and how much you have to do I like to plan before I go to bed the things I need to do when I get up just so it’s there and ready for when I get up so I can get straight into it and it’s one less thing to do in the morning. However if I have say more than five main things to do in a day I would probably write them all down then separate them into two or three different to do lists depending on what time of the day they need to be done. However if they are small tasks like brushing my teeth or making my bed I like to make check lists instead especially if they’re repeating everyday then it’s easier to have a staple checklist to just tick things off every day instead of making one afresh everyday.
Hope that helps.