date-time-ymd-yd-century

Arguments: date-time

Returns the value in the ymd-yd-century (the century in calendar date and ordinal date calendars) slot of date-time, which must be a date-time object. The value is nil if the slot is not set. Otherwise it is an integer. This value cannot be changed with setf and this function. See also date-time-ywd-century.

This value cannot be changed with setf and this function.

(require :datetime)
(use-package :util.date-time)

;; date-time is 1985/04/12 10:15:30, that is 15 and a half
;; minutes after 10 AM April 12, 1985.
(setq a (date-time "1985-04-12T10:15:30"))
(date-time-ymd-yd-century a) -> 19
(setq a1 (date-time "85102T235030"))  ;; no century specified
(date-time-ymd-yd-century a1) -> nil

See date-time.htm for information on support in Allegro CL for parsing and generating time expressions using the ISO 8601 standard.

Copyright (c) 1998-2022, Franz Inc. Lafayette, CA., USA. All rights reserved.
This page was not revised from the 10.0 page.
Created 2019.8.20.