ThreeTen 0.6.3 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. We recommend checking the downloaded files with any free antivirus. This free software for Mac OS X was originally created by Stephen Colebourne. The program lies within Productivity Tools, more precisely Timekeeping.
From the developer:
ThreeTen provides a modern date and time library for Java and is the reference implementation for JSR-310. It includes many of the lessons of the Joda-Time project and aims to standardise date and time concepts in computing.
Main features:
- Represent dates, times, date-times and instants.
- Represent periods and durations.
- Format and parse.
You may want to check out more software for Mac, such as Quote of the Day, Opera Clock or Hypnotic Clock, which might be related to ThreeTen.