From 94c77e48d3b3047e32fe8f4fcaed2ef20d4ecb27 Mon Sep 17 00:00:00 2001
From: Peter Bieringer <pb@bieringer.de>
Date: Sun, 2 Aug 2026 18:45:11 +0200
Subject: [PATCH] fix MONTHLY interval

---
 radicale/item/__init__.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/radicale/item/__init__.py b/radicale/item/__init__.py
index 0b6ebd89..82981036 100644
--- a/radicale/item/__init__.py
+++ b/radicale/item/__init__.py
@@ -56,7 +56,7 @@ VCF_TO_ICS_BDAY_NO_YEAR: list = ["1604"]
 # List of RRULE frequencies and their interval in seconds
 RRULE_FREQUENCIES_TO_INTERVAL: dict[str, float] = {
                                   "YEARLY": 365*60*60*24,
-                                  "MONTHLY": 365/30*60*60*24,
+                                  "MONTHLY": 365/12*60*60*24,
                                   "WEEKLY": 60*60*24*7,
                                   "DAILY": 60*60*24,
                                   "HOURLY": 60*60,