--
-- The exact syntax is as follows:
--
--- > date-time ::= wday ' ' month ' ' day ' ' time ' ' year
+-- > date-time ::= wday SP month SP day SP time SP year
-- > wday ::= "Mon" | "Tue" | "Wed" | "Thu"
-- > | "Fri" | "Sat" | "Sun"
-- > month ::= "Jan" | "Feb" | "Mar" | "Apr"