diff --git a/resources/js/packages/ui/src/FullCalendar/TimeEntryCalendar.vue b/resources/js/packages/ui/src/FullCalendar/TimeEntryCalendar.vue
index 1a561949..94d1ad8a 100644
--- a/resources/js/packages/ui/src/FullCalendar/TimeEntryCalendar.vue
+++ b/resources/js/packages/ui/src/FullCalendar/TimeEntryCalendar.vue
@@ -441,6 +441,13 @@ function snapEndToGrid(time: Dayjs, snapMinutes: number): Dayjs {
     return time.startOf('day').add(snapped, 'minute');
 }
 
+// Snap a dayjs time to the nearest snap boundary (for resize)
+function snapToNearestGrid(time: Dayjs, snapMinutes: number): Dayjs {
+    const minutes = time.hour() * 60 + time.minute();
+    const snapped = Math.round(minutes / snapMinutes) * snapMinutes;
+    return time.startOf('day').add(snapped, 'minute');
+}
+
 // --- Visual snap (composable) ---
 const {
     startDragSnap: startVisualDragSnap,
@@ -503,9 +510,11 @@ async function handleEventResize(arg: EventChangeArg) {
 
     const startChanged = !newStartLocal.isSame(origStartLocal, 'minute');
 
-    // Snap only the changed edge once, reuse for both setDates and API update
-    const snappedStart = startChanged ? snapStartToGrid(newStartLocal, snap) : null;
-    const snappedEnd = !startChanged && !ext.isRunning ? snapEndToGrid(newEndLocal, snap) : null;
+    // Snap only the changed edge once, reuse for both setDates and API update.
+    // Use Math.round (snapToNearestGrid) to match the visual snap during resize.
+    const snappedStart = startChanged ? snapToNearestGrid(newStartLocal, snap) : null;
+    const snappedEnd =
+        !startChanged && !ext.isRunning ? snapToNearestGrid(newEndLocal, snap) : null;
 
     // Set FC event to snapped position immediately to avoid flash.
     // Use the original event date for the edge that wasn't resized.
diff --git a/resources/js/packages/ui/src/FullCalendar/useVisualSnap.ts b/resources/js/packages/ui/src/FullCalendar/useVisualSnap.ts
index 438ca4ef..fdc64ec1 100644
--- a/resources/js/packages/ui/src/FullCalendar/useVisualSnap.ts
+++ b/resources/js/packages/ui/src/FullCalendar/useVisualSnap.ts
@@ -159,12 +159,12 @@ export function useVisualSnap({
             }
 
             if (resizeEdge === 'bottom') {
-                const snappedEnd = Math.ceil(endPos / snapPx) * snapPx;
+                const snappedEnd = Math.round(endPos / snapPx) * snapPx;
                 const clampedEnd = Math.max(top + snapPx, snappedEnd);
                 harness.style.bottom = -clampedEnd + 'px';
                 if (mirror) updateMirrorDurationLabel(mirror, top, clampedEnd, snapPx);
             } else if (resizeEdge === 'top') {
-                const snappedTop = Math.floor(top / snapPx) * snapPx;
+                const snappedTop = Math.round(top / snapPx) * snapPx;
                 const clampedTop = Math.min(endPos - snapPx, snappedTop);
                 harness.style.top = clampedTop + 'px';
                 if (mirror) updateMirrorDurationLabel(mirror, clampedTop, endPos, snapPx);