The Chronotebook is a notebook by designer Wong Kok Kiong that turns the typical day planner on its head by doing away with the narrow grids of the traditional planner for a small analog clock in the middle of the page.
The idea is that you can write in your own date on top of the page, use the rest of the space like a blank page and plan your day by marking the analog clock.
The Chronotebook won last year’s Muji’s International Design Competition and is currently available in Muji stores.
It’s the simplest manifestation of what a day planner is all about: time on paper. The clocks occupy a small amount of space on the page and rest is completely flexible. You can write in your own dates at the top of each page, and you can treat the rest of the space like a blank page.
Blogger Jack Cheung has a written a better review of the planner concept. (link)