Diarized
Day theming
Day theming assigns each day of the week a kind of work: Mondays for planning, Tuesdays for building, and so on. It is context switching avoided at the scale of a week rather than an hour. Jack Dorsey is the most frequently cited practitioner.
Also called: theme days
Where it goes wrong
It needs enough control over your own calendar to be possible at all, which is why the people quoted doing it tend to be founders and chief executives. If other people book your week, theming it is a preference rather than a plan.
Diarized schedules the work you already keep in a to-do app into the calendar you already use, and shows you why every block landed where it did.