diff --git a/components/dashboard/Chart.tsx b/components/dashboard/Chart.tsx
index 0e5c4f2..4b47fc0 100644
--- a/components/dashboard/Chart.tsx
+++ b/components/dashboard/Chart.tsx
@@ -439,7 +439,7 @@ export default function Chart({
                 <VisxXAxis
                   numTicks={6}
                   formatLabel={interval === 'minute' || interval === 'hour'
-                    ? (d) => d.toLocaleTimeString('en-GB', { hour: '2-digit', minute: '2-digit' })
+                    ? (d) => `${String(d.getUTCHours()).padStart(2, '0')}:${String(d.getUTCMinutes()).padStart(2, '0')}`
                     : (d) => d.toLocaleDateString('en-GB', { day: 'numeric', month: 'short' })
                   }
                 />
@@ -456,7 +456,7 @@ export default function Chart({
                     const config = METRIC_CONFIGS.find((m) => m.key === metric)
                     const value = point[metric] as number
                     const title = interval === 'minute' || interval === 'hour'
-                      ? dateObj.toLocaleTimeString('en-GB', { hour: '2-digit', minute: '2-digit' })
+                      ? `${String(dateObj.getUTCHours()).padStart(2, '0')}:${String(dateObj.getUTCMinutes()).padStart(2, '0')}`
                       : dateObj.toLocaleDateString('en-GB', { weekday: 'short', day: 'numeric', month: 'short' })
                     return (
                       <div className="px-3 py-2.5">