The novel has four narrators and covers eleven days. Each of them tells some of the same hours, and by the third draft I had two people eating breakfast in different towns on the same morning.
I have tried index cards, a wall chart and a spreadsheet. The cards get shuffled, the chart does not travel, and the spreadsheet tells me day 6, 14:00 without telling me who knows what by then. What do the rest of you actually use?
Draft four. Do not ask.