Disk Clock is a set of OS X Dashboard widgets. Install one or many to get beautiful time at all levels of detail.
Day Disk

Day Disk. Version: 2.6.0 (2012-03-20) Size: 98kb
Never get AM and PM confused again – with the Disk Clock Day Disk you have a full twenty-four hours, with day, twilight, night, and solar noon clearly displayed, along with a suggested bedtime.
Set your location (or let geolocation fill it in) to get daylight just right, and configure sleeping hours however you like.
Disk Clock

Disk Clock. Version: 2.6.0 (2012-03-20) Size: 102kb
Ever gotten the minute and hour hands confused? With Disk Clock, each disk rotates continuously past a single hand, always in the same place. Forget estimating which one is longer – disks don’t move around, and color coding helps you easily identify one time period from the the next. Disk Clock adds 4-hour, 1-hour, and 15-minute disks to the intuitive light-coded Day Disk.
Moon Disk

Moon Disk. Version: 2.6.0 (2012-03-20) Size: 217kb
Rotates to show the current position in the lunar cycle. Like Day Disk, the moon disk provides a simple, single-purpose view of a natural cycle. One small note – the actual lunar cycle can vary by as much as fourteen hours, while the Moon Disk keeps a constant pace.
Disk Calendar

Disk Calendar. Version: 2.6.0 (2012-03-20) Size: 221kb
Disk Clock takes the idea of clock and turns it inside-out by moving the faces instead of the hand. Disk Calendar extends the time period to week, moon, and year.
This is a calendar of sorts, built on natural cycles. Since the regular pace of a ‘clock’ doesn’t align well with irregular months and leap years, the pace is even. Thus, the year follows the solar year, and a moon stands in for a month. Weeks are thankfully regular, and work just as you’d expect.
Disk Long Count

Disk Long Count. Version: 2.6.0 (2012-03-20) Size: 102kb
Disk Clock takes the idea of clock and turns it inside-out by moving the faces instead of the hand. Disk Long Count reinterprets the mesoamerican long count calendar (20 baktuns), shown as interlocking faces moving against a steady hand.
Six interlocking disks show off the cyclical nature of the long count.
1. Pictun (20 baktuns)
2. Baktun (20 katuns)
3. Katun (20 tuns)
4. Tun (18 uinals)
5. Uinal (20 kins)
6. Kin (a day)
Disk Apocalypse

Disk Long Count. Version: 2.6.0 (2012-03-20) Size: 102kb
Disk Clock takes the idea of clock and turns it inside-out by moving the faces instead of the hand. Disk Apocalypse reinterprets “end of the world” 13-baktun mesoamerican long count calendar with shown as interlocking faces moving against a steady hand.
Six interlocking disks show off the cyclical nature of the long count, and how the all the cycles are lining up for December 21, 2012.
1. Pictun (13 baktuns)
2. Baktun (20 katuns)
3. Katun (20 tuns)
4. Tun (18 uinals)
5. Uinal (20 kins)
6. Kin (a day)
Disk Tzolk’in

Disk Tzolk’in. Version: 2.6.0 (2012-03-20) Size: 102kb
The mesoamerican cultures had a fascinating calendar system based on interlocking cycles of 13 and 20. (Tzolk’in to the Maya, Tonalpohualli to the Aztec, and probably other names to other cultures.) Unfortunately, this only accounts for 260 days, so it was usually combined with a solar year counting system based on similar principles, but using a more traditional month/day arrangement. (The Haab) The combination of dates between the two systems repeated every 52 years, which became a time of major celebration.
Disk Clock takes the idea of clock and turns it inside-out by moving the faces instead of the hand. Disk Tzolk’in shows the 13/20 interlocking cycle together with an entire 260 day disk. Outer disk relates the two cycles by alternating, overlapping colors.
Solar Year Disk

Solar Year Disk. Version: 2.6.0 (2012-03-20) Size: 94kb
Disk Clock takes the idea of clock and turns it inside-out by moving the faces instead of the hand. The Solar Year Disk beautifully presents the turn of the seasons.
Note that because this is a solar year, it turns at an even rate, and months are approximate. Solstices and Equinoxes are positioned at calculated positions (not simple quadrants), but are approximate. Light and dark show rough proportion of daylight throughout the year.
- Requires: OS X 10.4 Tiger. (Or a browser with good canvas support.)
- License: Streetware / Attribution-Share Alike

If you’re using Safari, click the download link. When the widget download is complete, Show Dashboard, click the Plus sign to display the Widget Bar and click the widget’s icon in the Widget Bar to open it. If you’re using a browser other than Safari, click the download link. When the widget download is complete, unarchive it and place it in /Library/Widgets/ in your home folder. Show Dashboard, click the Plus sign to display the Widget Bar and click the widget’s icon in the Widget Bar to open it.
