diff --git a/packages/grafana-ui/src/components/TimePicker/TimeZonePicker.tsx b/packages/grafana-ui/src/components/TimePicker/TimeZonePicker.tsx
index 18a4d533a4c..0f58cc43881 100644
--- a/packages/grafana-ui/src/components/TimePicker/TimeZonePicker.tsx
+++ b/packages/grafana-ui/src/components/TimePicker/TimeZonePicker.tsx
@@ -16,7 +16,7 @@ export const TimeZonePicker: FC<Props> = ({ onChange, value, width }) => {
     const options = group.options.map(timeZone => {
       return {
         label: timeZone,
-        value: timeZone.toLowerCase(),
+        value: timeZone,
       };
     });