From 866e5d859476915c3e7330e0f9e927eb17a1d92a Mon Sep 17 00:00:00 2001
From: Gregor Vostrak <gregor@solidtime.io>
Date: Mon, 11 May 2026 17:20:28 +0200
Subject: [PATCH] clamp running time entry duration to min 0 for
 FullCalendarHeaderDuration calc

---
 .../js/packages/ui/src/FullCalendar/useCalendarEvents.ts    | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/resources/js/packages/ui/src/FullCalendar/useCalendarEvents.ts b/resources/js/packages/ui/src/FullCalendar/useCalendarEvents.ts
index 791355cd..7e3b2e34 100644
--- a/resources/js/packages/ui/src/FullCalendar/useCalendarEvents.ts
+++ b/resources/js/packages/ui/src/FullCalendar/useCalendarEvents.ts
@@ -265,9 +265,9 @@ export function useCalendarEvents(params: {
                     'seconds'
                 );
             } else {
-                durationSeconds = params.currentTime.value.diff(
-                    getDayJsInstance()(entry.start),
-                    'seconds'
+                durationSeconds = Math.max(
+                    0,
+                    params.currentTime.value.diff(getDayJsInstance()(entry.start), 'seconds')
                 );
             }