Add Singapore Exchange (SGX) holidays

README.md

@@ -2045,6 +2045,13 @@ code when available. The following financial markets are available:
 <td></td>
 </tr>
 <tr>
+<td>Singapore Exchange</td>
+<td>XSES</td>
+<td>Singapore Exchange (SGX) market holidays</td>
+<td><strong>en_SG</strong>, en_US, th</td>
+<td>HALF_DAY</td>
+</tr>
+<tr>
 <td>SIX Swiss Exchange</td>
 <td>XSWX</td>
 <td>SIX Swiss Exchange market holidays</td>

holidays/financial/__init__.py

@@ -29,5 +29,6 @@
 from holidays.financial.ny_stock_exchange import NewYorkStockExchange, XNYS, NYSE
 from holidays.financial.shanghai_stock_exchange import ShanghaiStockExchange, XSHG, SSE
 from holidays.financial.shenzhen_stock_exchange import ShenzhenStockExchange, XSHE, SZSE
+from holidays.financial.singapore_exchange import SingaporeExchange, XSES, SGX
 from holidays.financial.six_swiss_exchange import SIXSwissExchange, XSWX, SIX
 from holidays.financial.toronto_stock_exchange import TorontoStockExchange, XTSE, TSX

holidays/financial/singapore_exchange.py

@@ -0,0 +1,61 @@
+#  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.constants import HALF_DAY, PUBLIC
+from holidays.countries.singapore import Singapore
+
+
+class SingaporeExchange(Singapore):
+    """Singapore Exchange (SGX) holidays.
+
+    References:
+        * <https://web.archive.org/web/20260725102849/https://www.sgx.com/stock-exchange/trading>
+    """
+
+    country = None  # type: ignore[assignment]
+    market = "XSES"
+    parent_entity = Singapore
+    supported_categories: tuple[str, ...] = (HALF_DAY, PUBLIC)  # type: ignore[assignment]
+    start_year = 2000
+    observed_label = "%s"
+
+    def _populate_common_holidays(self):
+        super()._populate_common_holidays()
+
+        for dt in tuple(self.keys()):
+            if self._is_weekend(dt):
+                self.pop(dt)
+
+    def _populate_half_day_holidays(self):
+        # %s (markets close at 12:00 p.m. SGT).
+        pause_label = tr("%s (markets close at 12:00 p.m. SGT)")
+
+        # Christmas Eve.
+        self._add_christmas_eve(self._format_holiday_name(pause_label, tr("Christmas Eve")))
+
+        # New Year's Eve.
+        self._add_new_years_eve(self._format_holiday_name(pause_label, tr("New Year's Eve")))
+
+        self._add_chinese_new_years_eve(
+            # Chinese New Year's Eve.
+            self._format_holiday_name(pause_label, tr("Chinese New Year's Eve"))
+        )
+
+
+class XSES(SingaporeExchange):
+    pass
+
+
+class SGX(SingaporeExchange):
+    pass

holidays/locale/en_SG/LC_MESSAGES/XSES.po

@@ -0,0 +1,45 @@
+#  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)
+#
+# Singapore Exchange (SGX) holidays.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Holidays 0.102\n"
+"Report-Msgid-Bugs-To: l10n@vacanza.dev\n"
+"POT-Creation-Date: 2026-07-25 04:57+0000\n"
+"PO-Revision-Date: 2026-07-25 14:54+0000\n"
+"Last-Translator: Paresh Joshi <pareshjoshij@gmail.com>\n"
+"Language-Team: Holidays Localization Team\n"
+"Language: en_SG\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: en_SG\n"
+
+#. %s (markets close at 12:00 p.m. SGT).
+#, c-format
+msgid "%s (markets close at 12:00 p.m. SGT)"
+msgstr ""
+
+#. Christmas Eve.
+msgid "Christmas Eve"
+msgstr ""
+
+#. New Year's Eve.
+msgid "New Year's Eve"
+msgstr ""
+
+#. Chinese New Year's Eve.
+msgid "Chinese New Year's Eve"
+msgstr ""

holidays/locale/en_US/LC_MESSAGES/XSES.po

@@ -0,0 +1,45 @@
+#  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)
+#
+# Singapore Exchange (SGX) holidays en_US localization.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Holidays 0.102\n"
+"Report-Msgid-Bugs-To: l10n@vacanza.dev\n"
+"POT-Creation-Date: 2026-07-25 04:57+0000\n"
+"PO-Revision-Date: 2026-07-25 14:54+0000\n"
+"Last-Translator: Paresh Joshi <pareshjoshij@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: en_SG\n"
+
+#. %s (markets close at 12:00 p.m. SGT).
+#, c-format
+msgid "%s (markets close at 12:00 p.m. SGT)"
+msgstr "%s (markets close at 12:00 p.m. SGT)"
+
+#. Christmas Eve.
+msgid "Christmas Eve"
+msgstr "Christmas Eve"
+
+#. New Year's Eve.
+msgid "New Year's Eve"
+msgstr "New Year's Eve"
+
+#. Chinese New Year's Eve.
+msgid "Chinese New Year's Eve"
+msgstr "Chinese New Year's Eve"

holidays/locale/th/LC_MESSAGES/XSES.po

@@ -0,0 +1,45 @@
+#  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)
+#
+# Singapore Exchange (SGX) holidays th localization.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Holidays 0.102\n"
+"Report-Msgid-Bugs-To: l10n@vacanza.dev\n"
+"POT-Creation-Date: 2026-07-25 04:57+0000\n"
+"PO-Revision-Date: 2026-07-25 14:54+0000\n"
+"Last-Translator: Paresh Joshi <pareshjoshij@gmail.com>\n"
+"Language-Team: Holidays Localization Team\n"
+"Language: th\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: en_SG\n"
+
+#. %s (markets close at 12:00 p.m. SGT).
+#, c-format
+msgid "%s (markets close at 12:00 p.m. SGT)"
+msgstr "%s (ตลาดปิดเวลา 12:00 น. SGT)"
+
+#. Christmas Eve.
+msgid "Christmas Eve"
+msgstr "วันคริสต์มาสอีฟ"
+
+#. New Year's Eve.
+msgid "New Year's Eve"
+msgstr "วันสิ้นปี"
+
+#. Chinese New Year's Eve.
+msgid "Chinese New Year's Eve"
+msgstr "วันก่อนวันตรุษจีน"

holidays/registry.py

@@ -301,6 +301,7 @@
     "ny_stock_exchange": ("NewYorkStockExchange", "XNYS", "NYSE"),
     "shanghai_stock_exchange": ("ShanghaiStockExchange", "XSHG", "SSE"),
     "shenzhen_stock_exchange": ("ShenzhenStockExchange", "XSHE", "SZSE"),
+    "singapore_exchange": ("SingaporeExchange", "XSES", "SGX"),
     "six_swiss_exchange": ("SIXSwissExchange", "XSWX", "SIX"),
     "toronto_stock_exchange": ("TorontoStockExchange", "XTSE", "TSX"),
 }

tests/financial/test_singapore_exchange.py

@@ -0,0 +1,137 @@
+#  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 unittest import TestCase
+
+from holidays.financial.singapore_exchange import SingaporeExchange
+from tests.common import CommonFinancialTests
+
+
+class TestSingaporeExchange(CommonFinancialTests, TestCase):
+    @classmethod
+    def setUpClass(cls):
+        cls.full_range = range(2000, 2027)
+        super().setUpClass(SingaporeExchange)
+
+    def test_code(self):
+        self.assertTrue(hasattr(self.holidays, "market"))
+        self.assertIsNone(getattr(self.holidays, "country", None))
+
+    def test_christmas_eve(self):
+        name = "Christmas Eve (markets close at 12:00 p.m. SGT)"
+        years_absent = {2000, 2005, 2006, 2011, 2016, 2017, 2022, 2023}
+        self.assertNoHolidayName(name)
+        self.assertNoHalfDayHolidayName(name, (f"{year}-12-24" for year in years_absent))
+        self.assertHalfDayNonObservedHolidayName(
+            name, (f"{year}-12-24" for year in self.full_range if year not in years_absent)
+        )
+
+    def test_new_years_eve(self):
+        name = "New Year's Eve (markets close at 12:00 p.m. SGT)"
+        years_absent = {2000, 2005, 2006, 2011, 2016, 2017, 2022, 2023}
+        self.assertNoHolidayName(name)
+        self.assertNoHalfDayHolidayName(name, (f"{year}-12-31" for year in years_absent))
+        self.assertHalfDayNonObservedHolidayName(
+            name, (f"{year}-12-31" for year in self.full_range if year not in years_absent)
+        )
+
+    def test_chinese_new_years_eve(self):
+        name = "Chinese New Year's Eve (markets close at 12:00 p.m. SGT)"
+        self.assertNoHolidayName(name)
+        self.assertHalfDayHolidayName(
+            name,
+            "2020-01-24",
+            "2021-02-11",
+            "2022-01-31",
+            "2024-02-09",
+            "2025-01-28",
+            "2026-02-16",
+        )
+        self.assertNoHalfDayHolidayName(
+            name,
+            "2023-01-21",
+        )
+
+    def test_2025(self):
+        self.assertHolidaysInYear(
+            2025,
+            ("2025-01-01", "New Year's Day"),
+            ("2025-01-29", "Chinese New Year"),
+            ("2025-01-30", "Chinese New Year"),
+            ("2025-03-31", "Hari Raya Puasa"),
+            ("2025-04-18", "Good Friday"),
+            ("2025-05-01", "Labour Day"),
+            ("2025-05-12", "Vesak Day"),
+            ("2025-10-20", "Deepavali"),
+            ("2025-12-25", "Christmas Day"),
+        )
+
+    def test_half_day_2025(self):
+        self.assertHalfDayHolidaysInYear(
+            2025,
+            ("2025-01-28", "Chinese New Year's Eve (markets close at 12:00 p.m. SGT)"),
+            ("2025-12-24", "Christmas Eve (markets close at 12:00 p.m. SGT)"),
+            ("2025-12-31", "New Year's Eve (markets close at 12:00 p.m. SGT)"),
+        )
+
+    def test_l10n_default(self):
+        self.assertLocalizedHolidays(
+            ("2024-01-01", "New Year's Day"),
+            ("2024-02-09", "Chinese New Year's Eve (markets close at 12:00 p.m. SGT)"),
+            ("2024-02-12", "Chinese New Year"),
+            ("2024-03-29", "Good Friday"),
+            ("2024-04-10", "Hari Raya Puasa"),
+            ("2024-05-01", "Labour Day"),
+            ("2024-05-22", "Vesak Day"),
+            ("2024-06-17", "Hari Raya Haji"),
+            ("2024-08-09", "National Day"),
+            ("2024-10-31", "Deepavali"),
+            ("2024-12-24", "Christmas Eve (markets close at 12:00 p.m. SGT)"),
+            ("2024-12-25", "Christmas Day"),
+            ("2024-12-31", "New Year's Eve (markets close at 12:00 p.m. SGT)"),
+        )
+
+    def test_l10n_en_us(self):
+        self.assertLocalizedHolidays(
+            "en_US",
+            ("2024-01-01", "New Year's Day"),
+            ("2024-02-09", "Chinese New Year's Eve (markets close at 12:00 p.m. SGT)"),
+            ("2024-02-12", "Chinese New Year"),
+            ("2024-03-29", "Good Friday"),
+            ("2024-04-10", "Eid al-Fitr"),
+            ("2024-05-01", "Labor Day"),
+            ("2024-05-22", "Vesak Day"),
+            ("2024-06-17", "Eid al-Adha"),
+            ("2024-08-09", "National Day"),
+            ("2024-10-31", "Deepavali"),
+            ("2024-12-24", "Christmas Eve (markets close at 12:00 p.m. SGT)"),
+            ("2024-12-25", "Christmas Day"),
+            ("2024-12-31", "New Year's Eve (markets close at 12:00 p.m. SGT)"),
+        )
+
+    def test_l10n_th(self):
+        self.assertLocalizedHolidays(
+            "th",
+            ("2024-01-01", "วันขึ้นปีใหม่"),
+            ("2024-02-09", "วันก่อนวันตรุษจีน (ตลาดปิดเวลา 12:00 น. SGT)"),
+            ("2024-02-12", "วันตรุษจีน"),
+            ("2024-03-29", "วันศุกร์ประเสริฐ"),
+            ("2024-04-10", "วันอีฎิ้ลฟิตริ"),
+            ("2024-05-01", "วันแรงงาน"),
+            ("2024-05-22", "วันวิสาขบูชา"),
+            ("2024-06-17", "วันอีดิ้ลอัฎฮา"),
+            ("2024-08-09", "วันชาติสิงคโปร์"),
+            ("2024-10-31", "วันดีปาวลี"),
+            ("2024-12-24", "วันคริสต์มาสอีฟ (ตลาดปิดเวลา 12:00 น. SGT)"),
+            ("2024-12-25", "วันคริสต์มาส"),
+            ("2024-12-31", "วันสิ้นปี (ตลาดปิดเวลา 12:00 น. SGT)"),
+        )