Add Sint Maarten holidays

CONTRIBUTORS

@@ -118,6 +118,7 @@ Pedro Baptista
 Peter Zsak
 Pieter van der Westhuizen
 Piotr Staniów
+Platon Supranovich
 Prateekshit Jaiswal
 Raphael Borg Ellul Vincenti
 Raychel Mattheeuw

README.md

@@ -105,7 +105,7 @@ and detailed information.
 
 ## Available Countries
 
-We currently support 203 country codes. The standard way to refer to a country is by using its [ISO
+We currently support 204 country codes. The standard way to refer to a country is by using its [ISO
 3166-1 alpha-2 code](https://en.wikipedia.org/wiki/List_of_ISO_3166_country_codes), the same used
 for domain names, and for a subdivision its [ISO 3166-2
 code](https://en.wikipedia.org/wiki/ISO_3166-2). Some countries have common or foreign names or
@@ -1302,6 +1302,13 @@ any) in brackets, available languages and additional holiday categories. All cou
 <td></td>
 </tr>
 <tr>
+<td>Sint Maarten</td>
+<td>SX</td>
+<td></td>
+<td>en_US, <strong>nl</strong></td>
+<td></td>
+</tr>
+<tr>
 <td>Slovakia</td>
 <td>SK</td>
 <td></td>

holidays/countries/__init__.py

@@ -187,6 +187,7 @@
 from holidays.countries.seychelles import Seychelles, SC, SYC
 from holidays.countries.sierra_leone import SierraLeone, SL, SLE
 from holidays.countries.singapore import Singapore, SG, SGP
+from holidays.countries.sint_maarten import SintMaarten, SX, SXM
 from holidays.countries.slovakia import Slovakia, SK, SVK
 from holidays.countries.slovenia import Slovenia, SI, SVN
 from holidays.countries.solomon_islands import SolomonIslands, SB, SLB

holidays/countries/sint_maarten.py

@@ -0,0 +1,118 @@
+#  holidays
+#  --------
+#  A fast, efficient Python library for generating country, province and state
+#  specific sets of holidays on the fly. It aims to make determining whether a
+#  specific date is a holiday as fast and flexible as possible.
+#
+#  Authors: Vacanza Team and individual contributors (see CONTRIBUTORS file)
+#           dr-prodigy <dr.prodigy.github@gmail.com> (c) 2017-2023
+#           ryanss <ryanssdev@icloud.com> (c) 2014-2017
+#  Website: https://github.com/vacanza/holidays
+#  License: MIT (see LICENSE file)
+
+from gettext import gettext as tr
+
+from holidays.groups import ChristianHolidays, InternationalHolidays
+from holidays.observed_holiday_base import (
+    ObservedHolidayBase,
+    SAT_TO_PREV_FRI,
+    SUN_TO_PREV_SAT,
+    SUN_TO_NEXT_MON,
+    SUN_TO_NEXT_TUE,
+)
+
+
+class SintMaarten(ObservedHolidayBase, ChristianHolidays, InternationalHolidays):
+    """Sint Maarten holidays.
+
+    References:
+        * <https://en.wikipedia.org/wiki/Public_holidays_in_Sint_Maarten>
+        * [AB 2012 no. 19](https://web.archive.org/web/20250615040244/https://www.sintmaartengov.org/Documents/Official%20Publications/AB%2019%20Lvo%20Dag%20van%20Bevrijding.pdf)
+        * [AB 2015 no. 24](https://web.archive.org/web/20250615035932/https://www.sintmaartengov.org/Documents/Official%20Publications/AB%2024%20Landsverordening%20Constitution%20Day.pdf)
+        * [2014-2023](https://web.archive.org/web/20230307083630/https://www.sintmaartengov.org/government/VSA/labour/Pages/Public-Holiday-Schedule.aspx)
+        * [2024-Present](https://web.archive.org/web/20250212071023/https://www.sintmaartengov.org/Pages/Public-Holiday-Schedule.aspx)
+    """
+
+    country = "SX"
+    default_language = "nl"
+    supported_languages = ("en_US", "nl")
+    # Sint Maarten became a constituent country on October 10th, 2010.
+    start_year = 2011
+
+    def __init__(self, *args, **kwargs):
+        ChristianHolidays.__init__(self)
+        InternationalHolidays.__init__(self)
+        kwargs.setdefault("observed_rule", SUN_TO_NEXT_MON)
+        super().__init__(*args, **kwargs)
+
+    def _populate_public_holidays(self):
+        # New Year's Day.
+        self._add_new_years_day(tr("Nieuwjaarsdag"))
+
+        # Good Friday.
+        self._add_good_friday(tr("Goede Vrijdag"))
+
+        # Easter Sunday.
+        self._add_easter_sunday(tr("Eerste paasdag"))
+
+        # Easter Monday.
+        self._add_easter_monday(tr("Tweede paasdag"))
+
+        self._move_holiday(
+            # King's Day.
+            self._add_holiday_apr_27(tr("Koningsdag"))
+            if self._year >= 2014
+            # Queen's Day.
+            else self._add_holiday_apr_30(tr("Koninginnedag")),
+            rule=SUN_TO_PREV_SAT,
+        )
+
+        # Carnival Day.
+        name = tr("Carnavalsdag")
+        if self._year >= 2014:
+            self._move_holiday(
+                self._add_holiday_apr_30(name), rule=SAT_TO_PREV_FRI + SUN_TO_NEXT_TUE
+            )
+        else:
+            self._add_holiday_apr_29(name)
+
+        # Labor Day.
+        self._add_labor_day(tr("Dag van de Arbeid"))
+
+        # Ascension Day.
+        self._add_ascension_thursday(tr("Hemelvaartsdag"))
+
+        # Whit Sunday.
+        self._add_whit_sunday(tr("Eerste Pinksterdag"))
+
+        # Established on June 13th, 2012.
+        if self._year >= 2012:
+            # Emancipation Day.
+            self._move_holiday(self._add_holiday_jul_1(tr("Dag van de Bevrijding")))
+
+        # Established on September 28th, 2015.
+        if self._year >= 2015:
+            # Constitution Day.
+            self._add_holiday_2nd_mon_of_oct(tr("Dag van de Constitutie"))
+
+        # Sint Maarten Day.
+        self._add_holiday_nov_11(tr("Sint-Maartensdag"))
+
+        # Replaced by Constitution Day on October 2nd, 2015.
+        if self._year <= 2014:
+            # Kingdom Day.
+            self._move_holiday(self._add_holiday_dec_15(tr("Koninkrijksdag")))
+
+        # Christmas Day.
+        self._add_christmas_day(tr("Eerste Kerstdag"))
+
+        # Second Day of Christmas.
+        self._add_christmas_day_two(tr("Tweede Kerstdag"))
+
+
+class SX(SintMaarten):
+    pass
+
+
+class SXM(SintMaarten):
+    pass

holidays/locale/en_US/LC_MESSAGES/SX.po

@@ -0,0 +1,91 @@
+#  holidays
+#  --------
+#  A fast, efficient Python library for generating country, province and state
+#  specific sets of holidays on the fly. It aims to make determining whether a
+#  specific date is a holiday as fast and flexible as possible.
+#
+#  Authors: Vacanza Team and individual contributors (see CONTRIBUTORS file)
+#           dr-prodigy <dr.prodigy.github@gmail.com> (c) 2017-2023
+#           ryanss <ryanssdev@icloud.com> (c) 2014-2017
+#  Website: https://github.com/vacanza/holidays
+#  License: MIT (see LICENSE file)
+#
+# Sint Maarten holidays en_US localization.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Holidays 0.76\n"
+"POT-Creation-Date: 2025-06-14 14:20-0400\n"
+"PO-Revision-Date: 2025-06-14 14:20-0400\n"
+"Last-Translator: Platon Supranovich <psupra521@gmail.com>\n"
+"Language-Team: Holidays Localization Team\n"
+"Language: en_US\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Generated-By: Lingva 5.0.6\n"
+"X-Source-Language: nl\n"
+
+#. New Year's Day.
+msgid "Nieuwjaarsdag"
+msgstr "New Year's Day"
+
+#. Good Friday.
+msgid "Goede Vrijdag"
+msgstr "Good Friday"
+
+#. Easter Sunday.
+msgid "Eerste paasdag"
+msgstr "Easter Sunday"
+
+#. Easter Monday.
+msgid "Tweede paasdag"
+msgstr "Easter Monday"
+
+#. King's Day.
+msgid "Koningsdag"
+msgstr "King's Day"
+
+#. Queen's Day.
+msgid "Koninginnedag"
+msgstr "Queen's Day"
+
+#. Carnival Day.
+msgid "Carnavalsdag"
+msgstr "Carnival Day"
+
+#. Labor Day.
+msgid "Dag van de Arbeid"
+msgstr "Labor Day"
+
+#. Ascension Day.
+msgid "Hemelvaartsdag"
+msgstr "Ascension Day"
+
+#. Whit Sunday.
+msgid "Eerste Pinksterdag"
+msgstr "Whit Sunday"
+
+#. Emancipation Day.
+msgid "Dag van de Bevrijding"
+msgstr "Emancipation Day"
+
+#. Constitution Day.
+msgid "Dag van de Constitutie"
+msgstr "Constitution Day"
+
+#. Sint Maarten Day.
+msgid "Sint-Maartensdag"
+msgstr "Sint Maarten Day"
+
+#. Kingdom Day.
+msgid "Koninkrijksdag"
+msgstr "Kingdom Day"
+
+#. Christmas Day.
+msgid "Eerste Kerstdag"
+msgstr "Christmas Day"
+
+#. Second Day of Christmas.
+msgid "Tweede Kerstdag"
+msgstr "Second Day of Christmas"

holidays/locale/nl/LC_MESSAGES/SX.po

@@ -0,0 +1,91 @@
+#  holidays
+#  --------
+#  A fast, efficient Python library for generating country, province and state
+#  specific sets of holidays on the fly. It aims to make determining whether a
+#  specific date is a holiday as fast and flexible as possible.
+#
+#  Authors: Vacanza Team and individual contributors (see CONTRIBUTORS file)
+#           dr-prodigy <dr.prodigy.github@gmail.com> (c) 2017-2023
+#           ryanss <ryanssdev@icloud.com> (c) 2014-2017
+#  Website: https://github.com/vacanza/holidays
+#  License: MIT (see LICENSE file)
+#
+# Sint Maarten holidays.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Holidays 0.76\n"
+"POT-Creation-Date: 2025-06-23 12:56-0400\n"
+"PO-Revision-Date: 2025-06-23 12:56-0400\n"
+"Last-Translator: Platon Supranovich <psupra521@gmail.com>\n"
+"Language-Team: Holidays Localization Team\n"
+"Language: nl\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Generated-By: Lingva 5.0.6\n"
+"X-Source-Language: nl\n"
+
+#. New Year's Day.
+msgid "Nieuwjaarsdag"
+msgstr ""
+
+#. Good Friday.
+msgid "Goede Vrijdag"
+msgstr ""
+
+#. Easter Sunday.
+msgid "Eerste paasdag"
+msgstr ""
+
+#. Easter Monday.
+msgid "Tweede paasdag"
+msgstr ""
+
+#. King's Day.
+msgid "Koningsdag"
+msgstr ""
+
+#. Queen's Day.
+msgid "Koninginnedag"
+msgstr ""
+
+#. Carnival Day.
+msgid "Carnavalsdag"
+msgstr ""
+
+#. Labor Day.
+msgid "Dag van de Arbeid"
+msgstr ""
+
+#. Ascension Day.
+msgid "Hemelvaartsdag"
+msgstr ""
+
+#. Whit Sunday.
+msgid "Eerste Pinksterdag"
+msgstr ""
+
+#. Emancipation Day.
+msgid "Dag van de Bevrijding"
+msgstr ""
+
+#. Constitution Day.
+msgid "Dag van de Constitutie"
+msgstr ""
+
+#. Sint Maarten Day.
+msgid "Sint-Maartensdag"
+msgstr ""
+
+#. Kingdom Day.
+msgid "Koninkrijksdag"
+msgstr ""
+
+#. Christmas Day.
+msgid "Eerste Kerstdag"
+msgstr ""
+
+#. Second Day of Christmas.
+msgid "Tweede Kerstdag"
+msgstr ""

holidays/observed_holiday_base.py

@@ -58,6 +58,7 @@ def __add__(self, other):
 SAT_TO_NEXT_WORKDAY = ObservedRule({SAT: +7})
 SAT_TO_NONE = ObservedRule({SAT: None})
 
+SUN_TO_PREV_SAT = ObservedRule({SUN: -1})
 SUN_TO_NEXT_MON = ObservedRule({SUN: +1})
 SUN_TO_NEXT_TUE = ObservedRule({SUN: +2})
 SUN_TO_NEXT_WED = ObservedRule({SUN: +3})

holidays/registry.py

@@ -185,6 +185,7 @@
     "seychelles": ("Seychelles", "SC", "SYC"),
     "sierra_leone": ("SierraLeone", "SL", "SLE"),
     "singapore": ("Singapore", "SG", "SGP"),
+    "sint_maarten": ("SintMaarten", "SX", "SXM"),
     "slovakia": ("Slovakia", "SK", "SVK"),
     "slovenia": ("Slovenia", "SI", "SVN"),
     "solomon_islands": ("SolomonIslands", "SB", "SLB"),