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temporals by dcparker

A uniquely powerful Ruby parser for Temporal Expressions. Type out your recurring time patterns in plain english, and the computer can understand it.

"We could develop some interpreter that would be able to parse and process a range of expressions that we might want to deal with. This would be quite flexible, but also pretty hard" (Martin Fowler, Temporals is a Ruby parser for just that.


Temporals is NOT GUARANTEED to parse anything you give it. It has a limited, though rather large and flexible, vocabulary. If you come across something that doesn't parse properly, please write a spec test for it and send it to me:


Just Ruby!


gem install temporals -s


(The MIT License) Copyright (c) 2009 BehindLogic <> Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.


dcparker (


Daniel Parker (


You can download this project in either zip or tar formats.

You can also clone the project with Git by running:

$ git clone git://