diff --git a/frontend/src/views/ShopfloorDashboard.vue b/frontend/src/views/ShopfloorDashboard.vue
index 3f58f6f..3c4bbbe 100644
--- a/frontend/src/views/ShopfloorDashboard.vue
+++ b/frontend/src/views/ShopfloorDashboard.vue
@@ -237,7 +237,8 @@
 
 <script setup>
 import { ref, computed, onMounted, onUnmounted, nextTick } from 'vue'
-import { notificationsApi, businessUnitsApi, dashboardDefaultsApi } from '@/api'
+import { notificationsApi, businessUnitsApi, dashboardDefaultsApi, settingsApi } from '@/api'
+import { formatInZone, zonedInputFromUtc, DEFAULT_TZ } from '@/utils/datetime'
 import { getFacilityName, getSiteLogo, getServicenowUrls } from '@/utils/siteSettings'
 import { withBase } from '@/utils/basePath'
 
@@ -386,17 +387,30 @@ const upcomingNotifications = computed(() =>
 )
 
 // Clock
+// Site timezone drives every time on the board. Defaults until the setting
+// loads, so a slow settings call shows plausible time rather than blank.
+const siteTimezone = ref(DEFAULT_TZ)
+
 const currentTime = ref('')
 function updateClock() {
-  const now = new Date()
-  currentTime.value = now.toLocaleTimeString('en-US', {
-    hour: '2-digit',
-    minute: '2-digit',
-    second: '2-digit'
+  // The wall clock too: a board showing a different time to the cards beneath
+  // it is worse than either being wrong on its own.
+  currentTime.value = formatInZone(new Date(), siteTimezone.value, {
+    year: undefined, month: undefined, day: undefined,
+    hour: '2-digit', minute: '2-digit', second: '2-digit'
   })
 }
 
 onMounted(async () => {
+  // Before the first clock tick, so the board never renders viewer-zone time.
+  try {
+    const response = await settingsApi.get('site_timezone')
+    const value = response?.data?.data?.value
+    if (value) siteTimezone.value = value
+  } catch (e) {
+    // Keep the default zone; the board must still come up.
+  }
+
   updateClock()
   setInterval(updateClock, 1000)
 
@@ -528,15 +542,24 @@ function stateKind(item) {
 // timestamp alone makes a reader do the arithmetic.
 function startsWhen(dateStr) {
   if (!dateStr) return 'SOON'
-  const start = new Date(dateStr)
-  const time = start.toLocaleTimeString('en-US', { hour: 'numeric', minute: '2-digit' })
-  const startday = new Date(start.getFullYear(), start.getMonth(), start.getDate())
-  const now = new Date()
-  const today = new Date(now.getFullYear(), now.getMonth(), now.getDate())
-  const days = Math.round((startday - today) / 86400000)
+  const time = formatInZone(dateStr, siteTimezone.value, {
+    year: undefined, month: undefined, day: undefined,
+    hour: 'numeric', minute: '2-digit'
+  })
+  // TODAY/TOMORROW has to be decided on the SITE's calendar day. Doing the
+  // arithmetic on browser-local days makes the wording itself wrong for a
+  // viewer in another zone - a card can read TOMORROW to a remote admin and
+  // TODAY on the board, from the same data.
+  const startday = zonedInputFromUtc(dateStr, siteTimezone.value).slice(0, 10)
+  const todayday = zonedInputFromUtc(new Date(), siteTimezone.value).slice(0, 10)
+  const days = Math.round(
+    (new Date(`${startday}T00:00:00`) - new Date(`${todayday}T00:00:00`)) / 86400000)
   if (days <= 0) return `TODAY ${time}`
   if (days === 1) return `TOMORROW ${time}`
-  const when = start.toLocaleDateString('en-US', { weekday: 'short', month: 'short', day: 'numeric' })
+  const when = formatInZone(dateStr, siteTimezone.value, {
+    weekday: 'short', month: 'short', day: 'numeric',
+    hour: undefined, minute: undefined
+  })
   return `${when} ${time}`
 }
 
@@ -604,17 +627,20 @@ function textOn(backgroundcolor) {
   return (0.2126 * r + 0.7152 * g + 0.0722 * b) > 150 ? '#231b00' : '#fff'
 }
 
+// SITE zone, not the viewer's. A board hangs on a wall in the plant: it must
+// read plant time whatever the machine driving it is set to, and a kiosk with a
+// wrong system timezone would otherwise silently show wrong times to the floor.
 function formatTime(dateStr) {
   if (!dateStr) return ''
-  return new Date(dateStr).toLocaleTimeString('en-US', {
-    hour: '2-digit',
-    minute: '2-digit'
+  return formatInZone(dateStr, siteTimezone.value, {
+    year: undefined, month: undefined, day: undefined,
+    hour: '2-digit', minute: '2-digit'
   })
 }
 
 function formatDateTime(dateStr) {
   if (!dateStr) return ''
-  return new Date(dateStr).toLocaleString('en-US', {
+  return formatInZone(dateStr, siteTimezone.value, {
     weekday: 'short',
     month: 'short',
     day: 'numeric',
@@ -935,7 +961,9 @@ function handlePhotoError(e) {
   font-weight: 700;
   letter-spacing: 1px;
   text-transform: uppercase;
-  margin-bottom: 8px;
+  /* No margin-bottom. .chip-row centres each item's MARGIN box, so a bottom
+     margin here lifted this chip ~4px and left the state chip beside it
+     looking low. The row already provides the spacing underneath. */
 }
 
 /* Type colour as a bar down the left edge, the way the legacy board marked a
diff --git a/plugins/notifications/api/routes.py b/plugins/notifications/api/routes.py
index 3e30c6b..0ba56be 100644
--- a/plugins/notifications/api/routes.py
+++ b/plugins/notifications/api/routes.py
@@ -11,6 +11,7 @@ from flask_jwt_extended import jwt_required
 from shopdb.api import db, success_response, error_response, paginated_response, ErrorCodes, get_pagination_params, paginate_query
 
 from ..models import Notification, NotificationType
+from ..models.notification import _utc_iso
 
 from shopdb.api import require_permission, Setting
 
@@ -792,8 +793,12 @@ def get_shopfloor_notifications():
         result = {
             'notificationid': n.notificationid,
             'notification': n.notification,
-            'starttime': n.starttime.isoformat() if n.starttime else None,
-            'endtime': n.endtime.isoformat() if n.endtime else None,
+            # _utc_iso, not a bare isoformat: these are stored NAIVE but hold
+            # UTC, and an untagged string is read by the browser as LOCAL time,
+            # shifting every card on the board by the tz offset. The model's
+            # to_dict already learned this; the shopfloor feed had not.
+            'starttime': _utc_iso(n.starttime),
+            'endtime': _utc_iso(n.endtime),
             'ticketnumber': n.ticketnumber,
             'link': n.link,
             'isactive': n.isactive,