Research on temporal extraction from natural language

Supports additional parsers and refiners

• Parsers:
  

  var christmasParser = new chrono.Parser();
  christmasParser.pattern = function () { return /Christmas/i } 

• Refiners:
  

  var custom = new chrono.Chrono();
  custom.refiners.push(guessPMRefiner);
  // This will be parsed as PM.
  // > Tue Dec 16 2014 14:30:00 GMT-0600 (CST) 
  custom.parseDate("This is at 2.30");

• Doesn't support recurring temporal or events extraction
• JSON response

chrono.parseDate('Today');              // Mon Jul 18 2016 12:00:00 ...
chrono.casual.parseDate('Friday');      // Fri Jul 22 2016 12:00:00 ...
chrono.casual.parseDate('Jul 18 2016'); // Mon Jul 18 2016 12:00:00 ...

With custom parsers and refiners:

custom.parsers.push(christmasParser);

custom.parseDate("I'll arrive at 2.30AM on Christmas night") 

// Sun Dec 25 2016 02:30:00 GMT-0400 (EDT)

custom.refiners.push(guessPMRefiner);

custom.parseDate("This is at 2.30");

// Mon Jul 18 2016 14:30:00 GMT-0400 (EDT)

• Parses 'Today', 'this/next Friday', pattern parsing ('yyyy-dd-mm...')
• Supports recurring temporal (every Friday, Mondays, ...)
• Doesn't support events extraction. (i.e. it dumps your trash every Thursday but can't do the same during the World War II or the Great Depression)
• XML response (Timex3 Tag)
• (configurable) holidays / special days
• Need a TIMEX3 to ISO time parser

• every Friday
• Thursdays
• each year on christmas day
• Friday afternoon
• this coming Friday afternoon
• next Friday afternoon
• 1930s
• from 1920s to 1930s
• Christmas in 2014, MLK day in 2014, X-mas in 2014
• three hundred sixty five days after tomorrow

• Date time parsing
• Doesn't support recurring or events
• (88 open issues )

• a year ago
• 7 days from now
• in 3 hours
• 3 months ago saturday at 5:00 pm
• 7 hours before tomorrow at noon
• 3rd wednesday in november
• 3rd thursday this september
• 4th day last week
• fourteenth of june 2010 at eleven o'clock in the evening