calendar

Library for handling dates and times in your program
IN THIS PACKAGE
Module type CalendarLib . Period . S
type +'a period constraint 'a = [< date_field ]
val empty : [< date_field ] period
val add : [< date_field ] as 'a period -> 'a period -> 'a period
val sub : [< date_field ] as 'a period -> 'a period -> 'a period
val opp : [< date_field ] as 'a period -> 'a period
val equal : [< date_field ] period -> [< date_field ] period -> bool
val compare : [< date_field ] period -> [< date_field ] period -> int
val hash : [< date_field ] period -> int