From dc1842dbe8d47d4ea908546bfb2d91c532a89ce0 Mon Sep 17 00:00:00 2001
From: Dion Moult <dion@thinkmoult.com>
Date: Thu, 10 Oct 2024 22:02:50 +1100
Subject: [PATCH] Fix #5520. Incorrect double calculation of daylight savings
 and UTC zone.

---
 src/bonsai/bonsai/bim/module/light/prop.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/bonsai/bonsai/bim/module/light/prop.py b/src/bonsai/bonsai/bim/module/light/prop.py
index acc25f3b42..c80486c2ed 100644
--- a/src/bonsai/bonsai/bim/module/light/prop.py
+++ b/src/bonsai/bonsai/bim/module/light/prop.py
@@ -125,6 +125,8 @@ def update_sun_path(self):
     local_time = timezone.localize(dt, is_dst=None)
     sun_props.use_daylight_savings = bool(local_time.dst())
     sun_props.UTC_zone = local_time.utcoffset().total_seconds() / 3600
+    if sun_props.use_daylight_savings:
+        sun_props.UTC_zone -= 1
     zone = -sun_props.UTC_zone
     if sun_props.use_daylight_savings:
         zone -= 1