.. index:: single: date .. _date/0:

.. rst-class:: right

object

date

Date predicates.

| Availability: | logtalk_load(dates(loader))

| Author: Paulo Moura | Version: 2:3:0 | Date: 2026-04-08

| Compilation flags: | static, context_switching_calls

| Implements: | public :ref:`datep <datep/0>` | Uses: | :ref:`list <list/0>` | :ref:`os <os/0>`

| Remarks: | (none)

| Inherited public predicates: | Â :ref:`datep/0::add_duration/3` Â :ref:`datep/0::after/2` Â :ref:`datep/0::before/2` Â :ref:`datep/0::compare_date_time/3` Â :ref:`datep/0::date_time_to_unix/2` Â :ref:`datep/0::day_of_year/2` Â :ref:`datep/0::day_of_year_date/3` Â :ref:`datep/0::days_in_month/3` Â :ref:`datep/0::duration_between/3` Â :ref:`datep/0::format_date_time/4` Â :ref:`datep/0::leap_year/1` Â :ref:`datep/0::local_to_utc/3` Â :ref:`datep/0::month_weekday_date/5` Â :ref:`datep/0::name_of_day/3` Â :ref:`datep/0::name_of_month/3` Â :ref:`datep/0::normalize_date_time/2` Â :ref:`datep/0::same_instant/2` Â :ref:`datep/0::subtract_duration/3` Â :ref:`datep/0::today/3` Â :ref:`datep/0::unix_to_date_time/2` Â :ref:`datep/0::utc_to_local/3` Â :ref:`datep/0::valid/3` Â :ref:`datep/0::valid_date_time/1` Â :ref:`datep/0::week_of_year_iso/2` Â :ref:`datep/0::weekday/2` Â

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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)