Unequal hours
As in the old reckoning, twelve hours from sunrise to sunset and twelve from sunset to sunrise, worked out offline from where you are. A summer day hour runs past eighty minutes, a winter one under fifty. The dial shows both halves, your hours on its rim and the sun where it stands.
Your rule
As many hours as you like, each set by the sun (sunrise, the third hour, noon, sunset), by the clock, or opened by hand. Weekdays for each, and a bell: great, small, a handbell, a singing bowl or a zen wooden board, rung its own strokes or the hour's number. Or start from a ready rule: Benedictine, Stoic, zen, Hesychast, metta, five minutes with no religion.
Thirteen practices
Breathing (box, 4-7-8, even, alternate nostril or your own), meditation with interval bells, metta, beads moved by a tap or the volume keys, readings, a question, thanks, an evening review (Ignatius, Seneca, Franklin or your steps), bows, slow walking, a candle, silence that counts only face down, and steps of your own. Each with its settings, in any order.
The manuscript
A kept hour is written onto the page: the answer, the reading, the chosen word in red, the thanks. The practices leave marks in the margin, a vine grows along the edge, and the opening initial goes from red ink to lapis to burnished gold as more of the day is kept. A snail, a hare scribe, a cat, and the noonday demon on days noon was kept.
The short rule
Every hour can carry a one-minute version for a busy day or the road. A missed hour stays an empty space on the page, with no reproach.
The ink dries
Yesterday's page can't be rewritten, only glossed in the margin: a note from the future in red.
The calendar
Each month opens with its leaf: the labour of the month and the zodiac arch with the sun where it really stands. Your own red-letter days in red, seasons of your own (forty days of something) colouring the pages, day rules ticked on the page.
The great silence
After the last hour of the day the book closes until the first bell tomorrow. A long press breaks the silence, and the page remembers. On 31 December the year is bound in leather and goes on the shelf.