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Every release of Clock of Ages, newest first.

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A timeline: all 168 timekeepers in one line, one at a time, for those who’d rather walk through history than ride the lift floor by floor.

Four new puzzles, each one solved by working something out.

The planetary week: find out why the weekdays run in their order, and trace the seven-pointed star that gives it.
The Gregorian calendar: cut the ten days of 1582, then choose which leap days to drop so spring stays put.
Railroad time: get two trains past each other on one track when every town keeps its own noon.
Unix time: set a computer’s count of seconds, switch by switch, and watch its 32 bits run out in 2038.

More puzzles: four new hours to solve on the floors, and ten new kinds of clock in Five Clocks.

Carve the Maya counts in bars and dots, tell the time in the dark by a repeater’s notes, find your ship by its chronometer at noon, and fit a factory watch’s gears so its hands keep twelve to one.
Five Clocks now has more than one kind of clock for every age and every day of the week, from King Alfred’s candles to a clock with two minute hands.

The line you copy from Five Clocks now ends with a link to the puzzle, so whoever you share it with can play too.

Clearer words on the about, terms and privacy pages, and a tidier line of links along the top of each page.

The site’s name at the top of a page is now the way back to the clock, and the links at the foot still lead with it.
The terms and the privacy page now say “the Cruxially collection”, and that Stripe’s pages, receipts and card statements will reference it. What they cover hasn’t changed.

A shared link now shows a picture of the clock, and “on this day” is gentler: disasters, crime and bloodshed are left out.

Redrew the lantern clock and the cuckoo clock on Courts and ships. The bowl sundial’s tale now mentions Augustus’s great line in Rome.
The Doomsday Clock’s case now links to the Bulletin of the Atomic Scientists, for where the clock stands today.

The clock now comes in six designs, you can suggest what it does next, and you can leave a one-time tip on the new Support page.

A pusher on the clock’s case now changes its design, among them a pocket watch, a station clock and an aviator’s watch. The privacy page says your browser keeps your choice.
A new What’s next page takes your suggestions, which reach the site’s inbox with nothing about who sent them. The terms and the privacy page now cover them.
A tip buys nothing: the clock is the same for everyone, and gilt can still only be earned. The terms and the privacy page now cover tips, which Stripe takes on its own pages.
Clock of Ages now says where it belongs: it’s an educational web toy in Cruxially, a small, growing collection of educational web toys and puzzles.
Stripe’s pages, receipts and card statements say Cruxially, and the terms and the privacy page explain why.

All fourteen floors are open: the lift now runs from the first stone circles to now, 168 timekeepers in all.

Eight more floors, from Stones and stars to Atoms and the Moon, so no stop on the lift is closed.
Eight new toys, among them calling the new month at Nippur, keeping the water in an Athenian court, reading the hour by the stars and timing a burn on a Moonwatch.
A new layout: the lift runs the full height of the page with every floor in sight, and the clock takes the rest. The site’s pages moved to the info button.
Five Clocks and the pages with words now link to one another along the top.
The sign-up form on this page folds away, and folds by itself once you confirm your email. The privacy page now says your browser keeps that choice.

Clock of Ages opens: a plain clock with a brass lift down through fourteen floors of timekeeping history, and Five Clocks, a new puzzle every day.

Six floors are open, each with its twelve timekeepers, and many tell the time where you are in their own way.
Six toys to play, from the sundial to the chess clock, each with a challenge that gilds its hour when solved.
The winding crown at twelve turns the clock’s finish: brass, silver, walnut, blacked steel or enamel blue.
Five Clocks: five old clocks from five ages each show a time, and you set the plain clock to match.