.. index:: single: date .. _date/0: .. rst-class:: right **object** ``date`` ======== Date predicates. | **Availability:** | ``logtalk_load(dates(loader))`` | **Author:** Paulo Moura | **Version:** 1:3:0 | **Date:** 2026-02-25 | **Compilation flags:** | ``static, context_switching_calls`` | **Implements:** | ``public`` :ref:`datep ` | **Uses:** | :ref:`os ` | **Remarks:** | (none) | **Inherited public predicates:** |  :ref:`datep/0::add_duration/3`  :ref:`datep/0::date_time_to_unix/2`  :ref:`datep/0::day_of_year/2`  :ref:`datep/0::days_in_month/3`  :ref:`datep/0::duration_between/3`  :ref:`datep/0::leap_year/1`  :ref:`datep/0::local_to_utc/3`  :ref:`datep/0::name_of_day/3`  :ref:`datep/0::name_of_month/3`  :ref:`datep/0::normalize_date_time/2`  :ref:`datep/0::subtract_duration/3`  :ref:`datep/0::today/3`  :ref:`datep/0::unix_to_date_time/2`  :ref:`datep/0::utc_to_local/3`  :ref:`datep/0::valid/3`  :ref:`datep/0::valid_date_time/1`  :ref:`datep/0::valid_date_time/2`  :ref:`datep/0::week_of_year_iso/2`  :ref:`datep/0::weekday/2`   .. contents:: :local: :backlinks: top Public predicates ----------------- (no local declarations; see entity ancestors if any) Protected predicates -------------------- (no local declarations; see entity ancestors if any) Private predicates ------------------ (no local declarations; see entity ancestors if any) Operators --------- (none)