diff --git a/src/argus/htmx/dateformat/constants.py b/src/argus/htmx/dateformat/constants.py
index 67de6361f..18d33b7c4 100644
--- a/src/argus/htmx/dateformat/constants.py
+++ b/src/argus/htmx/dateformat/constants.py
@@ -1,3 +1,4 @@
+import dataclasses
 from django.conf import settings
 
 __all__ = [
@@ -8,12 +9,22 @@
 ]
 
 
+@dataclasses.dataclass
+class DateTimeFormat:
+    datetime: str
+    date: str
+    time: str
+
+
 DATETIME_FALLBACK = "LOCALE"
+
+# Datetime format specification can be found here:
+# https://docs.djangoproject.com/en/5.1/ref/templates/builtins/#date
 DATETIME_FORMATS = {
-    "LOCALE": "DATETIME_FORMAT",  # default
-    "ISO": "Y-m-d H:i:s",
-    "RFC5322": "r",
-    "EPOCH": "U",
+    "LOCALE": DateTimeFormat(datetime="DATETIME_FORMAT", date="DATE_FORMAT", time="TIME_FORMAT"),  # default
+    "ISO": DateTimeFormat(datetime="Y-m-d H:i:s", date="Y-m-d", time="H:i:s"),
+    "RFC5322": DateTimeFormat("r", "r", "r"),
+    "EPOCH": DateTimeFormat("U", "U", "U"),
 }
 DATETIME_CHOICES = tuple((format, format) for format in DATETIME_FORMATS)
 
diff --git a/src/argus/htmx/user/preferences/models.py b/src/argus/htmx/user/preferences/models.py
index 9524c6784..36f8b78be 100644
--- a/src/argus/htmx/user/preferences/models.py
+++ b/src/argus/htmx/user/preferences/models.py
@@ -41,4 +41,8 @@ class ArgusHtmxPreferences:
     def update_context(self, context):
         datetime_format_name = context.get("datetime_format_name", DATETIME_DEFAULT)
         datetime_format = DATETIME_FORMATS[datetime_format_name]
-        return {"datetime_format": datetime_format}
+        return {
+            "datetime_format": datetime_format.datetime,
+            "date_format": datetime_format.date,
+            "time_format": datetime_format.time,
+        }