samples/packages/intl/src/data/dates

These directories hold data used for date formatting when you read the data

from JSON files on disk or over the network. There are two directories



  patterns - Holds the mapping form skeletons to a locale-specific format. The

data is exactly equivalent to that in date_time_patterns.dart and is generated

from it using the tools/generate_locale_data_files.dart program.

 

  symbols - Holds the symbols used for formatting in a particular locale. This

includes things like the names of weekdays and months. The data is the same as

that in date_symbol_data_locale.dart and is generated from it using the 

tools/generate_locale_data_files.dart program.



There is also a localeList.dart file that lists all of the 

locales in these directories and which is sourced by other files in order to 

have a list of the available locales.