diff --git a/src/deploy/functions/backend.ts b/src/deploy/functions/backend.ts
index 411ed90d466..592bb1a46d7 100644
--- a/src/deploy/functions/backend.ts
+++ b/src/deploy/functions/backend.ts
@@ -26,6 +26,7 @@ export interface ScheduleTrigger {
   schedule?: string;
   timeZone?: string | null;
   retryConfig?: ScheduleRetryConfig | null;
+  attemptDeadlineSeconds?: number | null;
 }
 
 /** Something that has a ScheduleTrigger */
diff --git a/src/deploy/functions/build.ts b/src/deploy/functions/build.ts
index c786a22c907..2013e5a23da 100644
--- a/src/deploy/functions/build.ts
+++ b/src/deploy/functions/build.ts
@@ -147,6 +147,7 @@ export interface ScheduleTrigger {
   schedule: string | Expression<string>;
   timeZone?: Field<string>;
   retryConfig?: ScheduleRetryConfig | null;
+  attemptDeadlineSeconds?: Field<number>;
 }
 
 export type HttpsTriggered = { httpsTrigger: HttpsTrigger };
diff --git a/src/deploy/functions/runtimes/discovery/v1alpha1.ts b/src/deploy/functions/runtimes/discovery/v1alpha1.ts
index 8afaeb1f016..8bfd9cea5ec 100644
--- a/src/deploy/functions/runtimes/discovery/v1alpha1.ts
+++ b/src/deploy/functions/runtimes/discovery/v1alpha1.ts
@@ -222,6 +222,7 @@ function assertBuildEndpoint(ep: WireEndpoint, id: string): void {
       schedule: "Field<string>",
       timeZone: "Field<string>?",
       retryConfig: "object?",
+      attemptDeadlineSeconds: "Field<number>?",
     });
     if (ep.scheduleTrigger.retryConfig) {
       assertKeyTypes(prefix + ".scheduleTrigger.retryConfig", ep.scheduleTrigger.retryConfig, {
diff --git a/src/gcp/cloudscheduler.ts b/src/gcp/cloudscheduler.ts
index 50608d6e588..97325e15f54 100644
--- a/src/gcp/cloudscheduler.ts
+++ b/src/gcp/cloudscheduler.ts
@@ -267,21 +267,27 @@ export async function jobFromEndpoint(
   }
   job.schedule = endpoint.scheduleTrigger.schedule;
   if (endpoint.platform === "gcfv2" || endpoint.platform === "run") {
-    proto.convertIfPresent(job, endpoint, "attemptDeadline", "timeoutSeconds", (timeout) => {
-      if (timeout === null) {
-        return null;
-      }
-      // Cloud Scheduler has an attempt deadline range of [15s, 1800s], and defaults to 180s.
-      // We floor at 180s to be safe, even if the function timeout is shorter.
-      // This is because GCF/Cloud Run will already terminate the function at its configured timeout,
-      // so Cloud Scheduler won't actually wait the full 180s unless GCF itself fails to respond.
-      // Setting it shorter than 180s might cause premature retries due to network latency.
-      const attemptDeadlineSeconds = Math.max(
-        Math.min(timeout, MAX_V2_SCHEDULE_ATTEMPT_DEADLINE_SECONDS),
-        DEFAULT_V2_SCHEDULE_ATTEMPT_DEADLINE_SECONDS,
+    if (endpoint.scheduleTrigger.attemptDeadlineSeconds) {
+      job.attemptDeadline = proto.durationFromSeconds(
+        endpoint.scheduleTrigger.attemptDeadlineSeconds,
       );
-      return proto.durationFromSeconds(attemptDeadlineSeconds);
-    });
+    } else {
+      proto.convertIfPresent(job, endpoint, "attemptDeadline", "timeoutSeconds", (timeout) => {
+        if (timeout === null) {
+          return null;
+        }
+        // Cloud Scheduler has an attempt deadline range of [15s, 1800s], and defaults to 180s.
+        // We floor at 180s to be safe, even if the function timeout is shorter.
+        // This is because GCF/Cloud Run will already terminate the function at its configured timeout,
+        // so Cloud Scheduler won't actually wait the full 180s unless GCF itself fails to respond.
+        // Setting it shorter than 180s might cause premature retries due to network latency.
+        const attemptDeadlineSeconds = Math.max(
+          Math.min(timeout, MAX_V2_SCHEDULE_ATTEMPT_DEADLINE_SECONDS),
+          DEFAULT_V2_SCHEDULE_ATTEMPT_DEADLINE_SECONDS,
+        );
+        return proto.durationFromSeconds(attemptDeadlineSeconds);
+      });
+    }
   }
   if (endpoint.scheduleTrigger.retryConfig) {
     job.retryConfig = {};