diff --git a/api/ovdashboard_api/dav_calendar.py b/api/ovdashboard_api/dav_calendar.py
index fbc07af..ec82d5b 100644
--- a/api/ovdashboard_api/dav_calendar.py
+++ b/api/ovdashboard_api/dav_calendar.py
@@ -1,6 +1,7 @@
 import logging
 from dataclasses import dataclass
 from datetime import datetime, timedelta
+from functools import total_ordering
 from typing import Iterator
 
 from caldav import Calendar
@@ -12,12 +13,19 @@ from . import caldav_principal, get_ttl_hash, run_in_executor, timed_alru_cache
 _logger = logging.getLogger(__name__)
 
 
+@total_ordering
 class CalEvent(BaseModel):
     summary: str
     description: str
     dtstart: datetime
     dtend: datetime
 
+    def __lt__(self, other: "CalEvent") -> bool:
+        return self.dtstart < other.dtstart
+
+    def __eq__(self, other: "CalEvent") -> bool:
+        return self.dict() == other.dict()
+
 
 @timed_alru_cache(maxsize=20)
 async def _get_calendar(
@@ -52,7 +60,7 @@ async def _get_calendar_events(
             for vevent in event.vobject_instance.contents["vevent"]
         )
 
-    return [
+    return sorted([
         CalEvent(
             summary=vevent.summary.value,
             description=vevent.description.value,
@@ -60,7 +68,7 @@ async def _get_calendar_events(
             dtend=vevent.dtend.value,
         )
         for vevent in await _inner()
-    ]
+    ])
 
 
 @dataclass(frozen=True)