* Generic parsing of dates in over 200 language locales plus numerous
  formats in a language agnostic fashion.
* Generic parsing of relative dates like: '1 min ago', '2 weeks ago',
  '3 months, 1 week and 1 day ago', 'in 2 days', 'tomorrow'.
* Generic parsing of dates with time zones abbreviations or UTC
  offsets like: 'August 14, 2015 EST', 'July 4, 2013 PST',
  '21 July 2013 10:15 pm +0500'.
* Date lookup in longer texts.
* Support for non-Gregorian calendar systems.