daybook

noun

1. A daily chronicle; a diary.

   “It was a working document, a sort of lab notebook, and since I have called it a daybook, it has become the most valuable resource I have It takes me about six weeks to fill a daybook, and when I'm finished with one I go back through it and pick out anything that I need to work on in the next book.”

   “I try to get up thirty minutes before anyone else in my house in order to have my daybook writing time.”

   “Why is it called a Daybook? A Daybook traditionally is "a book in which daily transactions are recorded," but nowadays it is being used to mean "a journal."”

   “This is how I use my Daybook: I sit down on Sunday and think about the week ahead. I begin by identifying the major ... When I get home on Monday, I revisit my Daybook, consider what happened that day and what I want to happen the rest [...]”

2. An accounting journal.

   “Since these memoranda were marked down from day to day and the entries followed one another day by day, this first book of accounts was called a "daybook."”

3. A logbook.