diff --git a/cypress/fixtures/sample_composite_level_monitor.json b/cypress/fixtures/sample_composite_level_monitor.json
index 9b1f67bf4..8e6d09a13 100644
--- a/cypress/fixtures/sample_composite_level_monitor.json
+++ b/cypress/fixtures/sample_composite_level_monitor.json
@@ -48,7 +48,7 @@
               "name": "sample_channel",
               "destination_id": "6dYFw4gB2qeAWe54NgyL",
               "message_template": {
-                "source": "Monitor {{ctx.monitor.name}} just entered alert status. Please investigate the issue.\n  - Trigger: {{ctx.trigger.name}}\n  - Severity: {{ctx.trigger.severity}}\n  - Period start: {{ctx.periodStart}}\n  - Period end: {{ctx.periodEnd}}",
+                "source": "Monitor {{ctx.monitor.name}} just entered alert status. Please investigate the issue.\n  - Trigger: {{ctx.trigger.name}}\n  - Severity: {{ctx.trigger.severity}}\n  - Period start: {{ctx.periodStart}} UTC\n  - Period end: {{ctx.periodEnd}} UTC",
                 "lang": "mustache"
               },
               "throttle_enabled": false,
diff --git a/public/pages/CreateTrigger/components/Action/actions/Message.test.js b/public/pages/CreateTrigger/components/Action/actions/Message.test.js
index 047a2bec5..0d08d7e09 100644
--- a/public/pages/CreateTrigger/components/Action/actions/Message.test.js
+++ b/public/pages/CreateTrigger/components/Action/actions/Message.test.js
@@ -19,7 +19,7 @@ function getRenderWrapper(customProps = {}) {
           action={{
             message_template: {
               source:
-                'Monitor {{ctx.monitor.name}} just entered alert status. Please investigate the issue.\n- Trigger: {{ctx.trigger.name}}\n- Severity: {{ctx.trigger.severity}}\n- Period start: {{ctx.periodStart}}\n- Period end: {{ctx.periodEnd}}',
+                'Monitor {{ctx.monitor.name}} just entered alert status. Please investigate the issue.\n- Trigger: {{ctx.trigger.name}}\n- Severity: {{ctx.trigger.severity}}\n- Period start: {{ctx.periodStart}} UTC\n- Period end: {{ctx.periodEnd}} UTC',
               lang: 'mustache',
             },
           }}
diff --git a/public/pages/CreateTrigger/utils/constants.js b/public/pages/CreateTrigger/utils/constants.js
index dd8a59165..7c6af02e3 100644
--- a/public/pages/CreateTrigger/utils/constants.js
+++ b/public/pages/CreateTrigger/utils/constants.js
@@ -11,8 +11,8 @@ export const DEFAULT_MESSAGE_SOURCE = {
   Monitor {{ctx.monitor.name}} just entered alert status. Please investigate the issue.
   - Trigger: {{ctx.trigger.name}}
   - Severity: {{ctx.trigger.severity}}
-  - Period start: {{ctx.periodStart}}
-  - Period end: {{ctx.periodEnd}}
+  - Period start: {{ctx.periodStart}} UTC
+  - Period end: {{ctx.periodEnd}} UTC
 
   - Deduped Alerts:
   {{#ctx.dedupedAlerts}}
@@ -33,8 +33,8 @@ export const DEFAULT_MESSAGE_SOURCE = {
   Monitor {{ctx.monitor.name}} just entered alert status. Please investigate the issue.
   - Trigger: {{ctx.trigger.name}}
   - Severity: {{ctx.trigger.severity}}
-  - Period start: {{ctx.periodStart}}
-  - Period end: {{ctx.periodEnd}}
+  - Period start: {{ctx.periodStart}} UTC
+  - Period end: {{ctx.periodEnd}} UTC
   `.trim(),
 };
 
diff --git a/public/pages/CreateTrigger/utils/helper.js b/public/pages/CreateTrigger/utils/helper.js
index 83d2225d0..7721cdf40 100644
--- a/public/pages/CreateTrigger/utils/helper.js
+++ b/public/pages/CreateTrigger/utils/helper.js
@@ -74,8 +74,10 @@ export const getTriggerContext = (executeResponse, monitor, values, triggerIndex
   if (_.isArray(trigger) && triggerIndex >= 0) trigger = trigger[triggerIndex];
 
   return {
-    periodStart: moment.utc(_.get(executeResponse, 'period_start', Date.now())).tz(getTimeZone()).format(),
-    periodEnd: moment.utc(_.get(executeResponse, 'period_end', Date.now())).tz(getTimeZone()).format(),
+    // Backend only supports, UTC timezone. 
+    // Don't use user's local timezone.
+    periodStart: moment.utc(_.get(executeResponse, 'period_start', Date.now())).format(),
+    periodEnd: moment.utc(_.get(executeResponse, 'period_end', Date.now())).format(),
     results: [_.get(executeResponse, 'input_results.results[0]')].filter((result) => !!result),
     trigger: trigger,
     alert: null,