XTKS: Add 2026 holidays (#515)

Author: w3stling

exchange_calendars/exchange_calendar_xtks.py

@@ -50,6 +50,7 @@
 class XTKSExchangeCalendar(ExchangeCalendar):
     """
     Exchange calendar for the Tokyo Stock Exchange
+    https://www.jpx.co.jp/english/corporate/about-jpx/calendar/index.html
 
     First session: 9:00am - 11:30am
     Lunch Break: 11:30am - 12:30pm

exchange_calendars/xtks_holidays.py

@@ -101,6 +101,21 @@ def sunday_to_wednesday(dt):
     Timestamp("2023-03-21"),
     Timestamp("2024-03-20"),
     Timestamp("2025-03-20"),
+    Timestamp("2026-03-20"),
+    Timestamp("2027-03-22"),
+    Timestamp("2028-03-20"),
+    Timestamp("2029-03-20"),
+    Timestamp("2030-03-20"),
+    Timestamp("2031-03-21"),
+    Timestamp("2032-03-20"),
+    Timestamp("2033-03-21"),
+    Timestamp("2034-03-20"),
+    Timestamp("2035-03-21"),
+    Timestamp("2036-03-20"),
+    Timestamp("2037-03-20"),
+    Timestamp("2038-03-20"),
+    Timestamp("2039-03-21"),
+    Timestamp("2040-03-20"),
 ]
 
 # The Golden Week holidays (late April - early May) are listed in reverse
@@ -267,6 +282,22 @@ def sunday_to_wednesday(dt):
     Timestamp("2023-09-23"),
     Timestamp("2024-09-23"),
     Timestamp("2025-09-23"),
+    Timestamp("2026-09-23"),
+    Timestamp("2027-09-23"),
+    Timestamp("2028-09-22"),
+    Timestamp("2029-09-24"),
+    Timestamp("2030-09-23"),
+    Timestamp("2031-09-23"),
+    Timestamp("2032-09-22"),
+    Timestamp("2033-09-23"),
+    Timestamp("2034-09-23"),
+    Timestamp("2035-09-24"),
+    Timestamp("2036-09-22"),
+    Timestamp("2036-09-22"),
+    Timestamp("2037-09-23"),
+    Timestamp("2038-09-23"),
+    Timestamp("2039-09-23"),
+    Timestamp("2040-09-22"),
 ]
 
 # If the Autumnal Equinox falls on a Wednesday, the Tuesday before
@@ -276,6 +307,9 @@ def sunday_to_wednesday(dt):
 CitizensHolidaySilverWeek = [
     Timestamp("2009-09-22"),
     Timestamp("2015-09-22"),
+    Timestamp("2026-09-22"),
+    Timestamp("2032-09-21"),
+    Timestamp("2037-09-22"),
 ]
 
 RespectForTheAgedDayThrough2002 = Holiday(