diff --git a/.github/workflows/pr-test.yml b/.github/workflows/pr-test.yml
index fdb549f6f..738aba085 100644
--- a/.github/workflows/pr-test.yml
+++ b/.github/workflows/pr-test.yml
@@ -5,7 +5,7 @@ run-name: ${{ inputs.target_stage && (inputs.pr_head_sha && format('[{0}] {1}',
 
 on:
   schedule:
-    - cron: '0 */6 * * *'  # Run every 6 hours (UTC)
+    - cron: '0 1,9,17 * * *'  # Run 3x daily: 2am / 10am / 6pm Pacific (PDT)
   pull_request:
     branches: [main]
   workflow_dispatch: