diff --git a/apps/pwa/e2e/global-setup.ts b/apps/pwa/e2e/global-setup.ts
index e34f4d7..6432240 100644
--- a/apps/pwa/e2e/global-setup.ts
+++ b/apps/pwa/e2e/global-setup.ts
@@ -75,7 +75,11 @@ export default async function globalSetup(): Promise<void> {
     // Uses a future dtstart_utc so the event is visible in the UI's default "upcoming" view.
     const uid = 'e2e-seed-event-001'
     const futureStart = new Date(Date.now() + 24 * 60 * 60 * 1000) // tomorrow UTC
-    const futureStartUtc = futureStart.toISOString().replace(/\.\d+Z$/, 'Z') // trim ms
+    // MariaDB TIMESTAMP requires 'YYYY-MM-DD HH:MM:SS' format, not ISO 8601 with 'T'.
+    const futureStartUtc = futureStart
+      .toISOString()
+      .replace('T', ' ')
+      .replace(/\.\d+Z$/, '')
     const rawVevent = [
       'BEGIN:VCALENDAR',
       'VERSION:2.0',