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 Address Book Scrubber, Quote of the Day or Opera Clock, which might be related to ThreeTen.