1 -- |This module provides functions to parse and format RFC 822 date
2 -- and time strings (<http://tools.ietf.org/html/rfc822#section-5>).
4 -- The syntax is as follows:
6 -- > date-time ::= [ day-of-week ", " ] date SP time SP zone
7 -- > day-of-week ::= "Mon" | "Tue" | "Wed" | "Thu"
8 -- > | "Fri" | "Sat" | "Sun"
9 -- > date ::= day SP month SP year
11 -- > year ::= 2DIGIT ; Yes, only 2 digits.
12 -- > month ::= "Jan" | "Feb" | "Mar" | "Apr"
13 -- > | "May" | "Jun" | "Jul" | "Aug"
14 -- > | "Sep" | "Oct" | "Nov" | "Dec"
15 -- > time ::= hour ":" minute [ ":" second ]
17 -- > minute ::= 2DIGIT
18 -- > second ::= 2DIGIT
19 -- > zone ::= "UT" | "GMT" ; Universal Time
20 -- > | "EST" | "EDT" ; Eastern : -5 / -4
21 -- > | "CST" | "CDT" ; Central : -6 / -5
22 -- > | "MST" | "MDT" ; Mountain: -7 / -6
23 -- > | "PST" | "PDT" ; Pacific : -8 / -7
29 -- > | ("+" | "-") 4DIGIT ; Local diff: HHMM
30 module Data.Time.Format.RFC822
35 import Data.Time.Format.RFC822.Internal