diff --git a/tests/resources/xtks.csv b/tests/resources/xtks.csv
index ead92867..5fc63bd6 100644
--- a/tests/resources/xtks.csv
+++ b/tests/resources/xtks.csv
@@ -6105,3 +6105,25 @@
 2024-11-26T00:00:00Z,2024-11-26T00:00:00Z,2024-11-26T06:00:00Z,2024-11-26T02:30:00Z,2024-11-26T03:30:00Z
 2024-11-27T00:00:00Z,2024-11-27T00:00:00Z,2024-11-27T06:00:00Z,2024-11-27T02:30:00Z,2024-11-27T03:30:00Z
 2024-11-28T00:00:00Z,2024-11-28T00:00:00Z,2024-11-28T06:00:00Z,2024-11-28T02:30:00Z,2024-11-28T03:30:00Z
+2024-11-29T00:00:00Z,2024-11-29T00:00:00Z,2024-11-29T06:00:00Z,2024-11-29T02:30:00Z,2024-11-29T03:30:00Z
+2024-12-02T00:00:00Z,2024-12-02T00:00:00Z,2024-12-02T06:00:00Z,2024-12-02T02:30:00Z,2024-12-02T03:30:00Z
+2024-12-03T00:00:00Z,2024-12-03T00:00:00Z,2024-12-03T06:00:00Z,2024-12-03T02:30:00Z,2024-12-03T03:30:00Z
+2024-12-04T00:00:00Z,2024-12-04T00:00:00Z,2024-12-04T06:00:00Z,2024-12-04T02:30:00Z,2024-12-04T03:30:00Z
+2024-12-05T00:00:00Z,2024-12-05T00:00:00Z,2024-12-05T06:00:00Z,2024-12-05T02:30:00Z,2024-12-05T03:30:00Z
+2024-12-06T00:00:00Z,2024-12-06T00:00:00Z,2024-12-06T06:00:00Z,2024-12-06T02:30:00Z,2024-12-06T03:30:00Z
+2024-12-09T00:00:00Z,2024-12-09T00:00:00Z,2024-12-09T06:00:00Z,2024-12-09T02:30:00Z,2024-12-09T03:30:00Z
+2024-12-10T00:00:00Z,2024-12-10T00:00:00Z,2024-12-10T06:00:00Z,2024-12-10T02:30:00Z,2024-12-10T03:30:00Z
+2024-12-11T00:00:00Z,2024-12-11T00:00:00Z,2024-12-11T06:00:00Z,2024-12-11T02:30:00Z,2024-12-11T03:30:00Z
+2024-12-12T00:00:00Z,2024-12-12T00:00:00Z,2024-12-12T06:00:00Z,2024-12-12T02:30:00Z,2024-12-12T03:30:00Z
+2024-12-13T00:00:00Z,2024-12-13T00:00:00Z,2024-12-13T06:00:00Z,2024-12-13T02:30:00Z,2024-12-13T03:30:00Z
+2024-12-16T00:00:00Z,2024-12-16T00:00:00Z,2024-12-16T06:00:00Z,2024-12-16T02:30:00Z,2024-12-16T03:30:00Z
+2024-12-17T00:00:00Z,2024-12-17T00:00:00Z,2024-12-17T06:00:00Z,2024-12-17T02:30:00Z,2024-12-17T03:30:00Z
+2024-12-18T00:00:00Z,2024-12-18T00:00:00Z,2024-12-18T06:00:00Z,2024-12-18T02:30:00Z,2024-12-18T03:30:00Z
+2024-12-19T00:00:00Z,2024-12-19T00:00:00Z,2024-12-19T06:00:00Z,2024-12-19T02:30:00Z,2024-12-19T03:30:00Z
+2024-12-20T00:00:00Z,2024-12-20T00:00:00Z,2024-12-20T06:00:00Z,2024-12-20T02:30:00Z,2024-12-20T03:30:00Z
+2024-12-23T00:00:00Z,2024-12-23T00:00:00Z,2024-12-23T06:00:00Z,2024-12-23T02:30:00Z,2024-12-23T03:30:00Z
+2024-12-24T00:00:00Z,2024-12-24T00:00:00Z,2024-12-24T06:00:00Z,2024-12-24T02:30:00Z,2024-12-24T03:30:00Z
+2024-12-25T00:00:00Z,2024-12-25T00:00:00Z,2024-12-25T06:00:00Z,2024-12-25T02:30:00Z,2024-12-25T03:30:00Z
+2024-12-26T00:00:00Z,2024-12-26T00:00:00Z,2024-12-26T06:00:00Z,2024-12-26T02:30:00Z,2024-12-26T03:30:00Z
+2024-12-27T00:00:00Z,2024-12-27T00:00:00Z,2024-12-27T06:00:00Z,2024-12-27T02:30:00Z,2024-12-27T03:30:00Z
+2024-12-30T00:00:00Z,2024-12-30T00:00:00Z,2024-12-30T06:00:00Z,2024-12-30T02:30:00Z,2024-12-30T03:30:00Z
diff --git a/tests/test_xtks_calendar.py b/tests/test_xtks_calendar.py
index 1154844e..f13c26d7 100644
--- a/tests/test_xtks_calendar.py
+++ b/tests/test_xtks_calendar.py
@@ -201,6 +201,32 @@ def regular_holidays_sample(self, silver_week_holidays, golden_week_holidays):
             "2023-11-03",  # Culture Day
             "2023-11-23",  # Labor Thanksgiving Day
             "2023-12-31",  # Market Holiday
+            #
+            # 2024
+            "2024-01-01",  # New Year's Day
+            "2024-01-02",  # Market Holiday
+            "2024-01-03",  # Market Holiday
+            "2024-01-08",  # Coming of Age Day
+            "2024-02-11",  # National Foundation Day
+            "2024-02-12",  # National Foundation Day observed
+            "2024-02-23",  # Emperor's Birthday
+            "2024-03-20",  # Vernal Equinox
+            "2024-04-29",  # Showa Day
+            "2024-05-03",  # Constitution Memorial Day
+            "2024-05-04",  # Greenery Day
+            "2024-05-05",  # Children's Day
+            "2024-05-06",  # Children's Day observed
+            "2024-07-15",  # Marine Day
+            "2024-08-11",  # Mountain Day
+            "2024-08-12",  # Mountain Day observed
+            "2024-09-16",  # Respect for the Aged Day
+            "2024-09-22",  # Autumnal Equinox
+            "2024-09-23",  # Autumnal Equinox observed
+            "2024-10-14",  # Sports Day
+            "2024-11-03",  # Culture Day
+            "2024-11-04",  # Culture Day observed
+            "2024-11-23",  # Labor Thanksgiving Day
+            "2024-12-31",  # Market Holiday
             # Mountain Day 11th August, observed from 2016.
             "2016-08-11",
             "2019-08-12",  # Falls on Sunday, made up on Monday.