diff --git a/core/java/android/net/vcn/VcnManager.java b/core/java/android/net/vcn/VcnManager.java
index 70cf973..c727a60 100644
--- a/core/java/android/net/vcn/VcnManager.java
+++ b/core/java/android/net/vcn/VcnManager.java
@@ -115,6 +115,20 @@
             "vcn_restricted_transports";
 
     /**
+     * Key for number of seconds to wait before entering safe mode
+     *
+     * <p>A VcnGatewayConnection will enter safe mode when it takes over the configured timeout to
+     * enter {@link ConnectedState}.
+     *
+     * <p>Defaults to 30, unless overridden by carrier config
+     *
+     * @hide
+     */
+    @NonNull
+    public static final String VCN_SAFE_MODE_TIMEOUT_SECONDS_KEY =
+            "vcn_safe_mode_timeout_seconds_key";
+
+    /**
      * Key for maximum number of parallel SAs for tunnel aggregation
      *
      * <p>If set to a value > 1, multiple tunnels will be set up, and inbound traffic will be
@@ -135,6 +149,7 @@
                 VCN_NETWORK_SELECTION_WIFI_ENTRY_RSSI_THRESHOLD_KEY,
                 VCN_NETWORK_SELECTION_WIFI_EXIT_RSSI_THRESHOLD_KEY,
                 VCN_RESTRICTED_TRANSPORTS_INT_ARRAY_KEY,
+                VCN_SAFE_MODE_TIMEOUT_SECONDS_KEY,
                 VCN_TUNNEL_AGGREGATION_SA_COUNT_MAX_KEY,
             };
 
diff --git a/core/java/android/net/vcn/flags.aconfig b/core/java/android/net/vcn/flags.aconfig
index 6956916..67a1906 100644
--- a/core/java/android/net/vcn/flags.aconfig
+++ b/core/java/android/net/vcn/flags.aconfig
@@ -5,4 +5,11 @@
     namespace: "vcn"
     description: "Feature flag for safe mode configurability"
     bug: "276358140"
+}
+
+flag {
+    name: "safe_mode_timeout_config"
+    namespace: "vcn"
+    description: "Feature flag for adjustable safe mode timeout"
+    bug: "317406085"
 }
\ No newline at end of file
diff --git a/services/core/java/com/android/server/vcn/VcnContext.java b/services/core/java/com/android/server/vcn/VcnContext.java
index 9213d96..6ce8685 100644
--- a/services/core/java/com/android/server/vcn/VcnContext.java
+++ b/services/core/java/com/android/server/vcn/VcnContext.java
@@ -74,6 +74,10 @@
         return mFeatureFlags;
     }
 
+    public boolean isFlagSafeModeTimeoutConfigEnabled() {
+        return mFeatureFlags.safeModeTimeoutConfig();
+    }
+
     /**
      * Verifies that the caller is running on the VcnContext Thread.
      *
diff --git a/services/core/java/com/android/server/vcn/VcnGatewayConnection.java b/services/core/java/com/android/server/vcn/VcnGatewayConnection.java
index 54c97dd..68132dc 100644
--- a/services/core/java/com/android/server/vcn/VcnGatewayConnection.java
+++ b/services/core/java/com/android/server/vcn/VcnGatewayConnection.java
@@ -1242,9 +1242,28 @@
                 createScheduledAlarm(
                         SAFEMODE_TIMEOUT_ALARM,
                         delayedMessage,
-                        mVcnContext.isInTestMode()
-                                ? TimeUnit.SECONDS.toMillis(SAFEMODE_TIMEOUT_SECONDS_TEST_MODE)
-                                : TimeUnit.SECONDS.toMillis(SAFEMODE_TIMEOUT_SECONDS));
+                        getSafeModeTimeoutMs(mVcnContext, mLastSnapshot, mSubscriptionGroup));
+    }
+
+    /** Gets the safe mode timeout */
+    @VisibleForTesting(visibility = Visibility.PRIVATE)
+    public static long getSafeModeTimeoutMs(
+            VcnContext vcnContext, TelephonySubscriptionSnapshot snapshot, ParcelUuid subGrp) {
+        final int defaultSeconds =
+                vcnContext.isInTestMode()
+                        ? SAFEMODE_TIMEOUT_SECONDS_TEST_MODE
+                        : SAFEMODE_TIMEOUT_SECONDS;
+
+        final PersistableBundleWrapper carrierConfig = snapshot.getCarrierConfigForSubGrp(subGrp);
+        int resultSeconds = defaultSeconds;
+
+        if (vcnContext.isFlagSafeModeTimeoutConfigEnabled() && carrierConfig != null) {
+            resultSeconds =
+                    carrierConfig.getInt(
+                            VcnManager.VCN_SAFE_MODE_TIMEOUT_SECONDS_KEY, defaultSeconds);
+        }
+
+        return TimeUnit.SECONDS.toMillis(resultSeconds);
     }
 
     private void cancelSafeModeAlarm() {
diff --git a/tests/vcn/java/com/android/server/vcn/VcnGatewayConnectionTest.java b/tests/vcn/java/com/android/server/vcn/VcnGatewayConnectionTest.java
index 692c8a8..49665f7 100644
--- a/tests/vcn/java/com/android/server/vcn/VcnGatewayConnectionTest.java
+++ b/tests/vcn/java/com/android/server/vcn/VcnGatewayConnectionTest.java
@@ -27,15 +27,18 @@
 import static android.net.vcn.VcnGatewayConnectionConfig.VCN_GATEWAY_OPTION_ENABLE_DATA_STALL_RECOVERY_WITH_MOBILITY;
 
 import static com.android.server.vcn.VcnGatewayConnection.DUMMY_ADDR;
+import static com.android.server.vcn.VcnGatewayConnection.SAFEMODE_TIMEOUT_SECONDS;
 import static com.android.server.vcn.VcnGatewayConnection.VcnChildSessionConfiguration;
 import static com.android.server.vcn.VcnGatewayConnection.VcnIkeSession;
 import static com.android.server.vcn.VcnGatewayConnection.VcnNetworkAgent;
+import static com.android.server.vcn.util.PersistableBundleUtils.PersistableBundleWrapper;
 
 import static org.junit.Assert.assertArrayEquals;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertTrue;
 import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.ArgumentMatchers.anyLong;
 import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.CALLS_REAL_METHODS;
@@ -55,6 +58,7 @@
 import android.net.TelephonyNetworkSpecifier;
 import android.net.vcn.VcnGatewayConnectionConfig;
 import android.net.vcn.VcnGatewayConnectionConfigTest;
+import android.net.vcn.VcnManager;
 import android.net.vcn.VcnTransportInfo;
 import android.net.wifi.WifiInfo;
 import android.os.ParcelUuid;
@@ -81,6 +85,7 @@
 import java.util.Set;
 import java.util.UUID;
 import java.util.concurrent.Executor;
+import java.util.concurrent.TimeUnit;
 
 /** Tests for TelephonySubscriptionTracker */
 @RunWith(AndroidJUnit4.class)
@@ -352,4 +357,71 @@
                         any(Executor.class),
                         any(ConnectivityDiagnosticsCallback.class));
     }
+
+    private void verifyGetSafeModeTimeoutMs(
+            boolean isInTestMode,
+            boolean isConfigTimeoutSupported,
+            PersistableBundleWrapper carrierConfig,
+            long expectedTimeoutMs)
+            throws Exception {
+        doReturn(isInTestMode).when(mVcnContext).isInTestMode();
+        doReturn(isConfigTimeoutSupported).when(mVcnContext).isFlagSafeModeTimeoutConfigEnabled();
+
+        final TelephonySubscriptionSnapshot snapshot = mock(TelephonySubscriptionSnapshot.class);
+        doReturn(carrierConfig).when(snapshot).getCarrierConfigForSubGrp(TEST_SUB_GRP);
+
+        final long result =
+                VcnGatewayConnection.getSafeModeTimeoutMs(mVcnContext, snapshot, TEST_SUB_GRP);
+
+        assertEquals(expectedTimeoutMs, result);
+    }
+
+    @Test
+    public void testGetSafeModeTimeoutMs_configTimeoutUnsupported() throws Exception {
+        verifyGetSafeModeTimeoutMs(
+                false /* isInTestMode */,
+                false /* isConfigTimeoutSupported */,
+                null /* carrierConfig */,
+                TimeUnit.SECONDS.toMillis(SAFEMODE_TIMEOUT_SECONDS));
+    }
+
+    @Test
+    public void testGetSafeModeTimeoutMs_configTimeoutSupported() throws Exception {
+        final int carrierConfigTimeoutSeconds = 20;
+        final PersistableBundleWrapper carrierConfig = mock(PersistableBundleWrapper.class);
+        doReturn(carrierConfigTimeoutSeconds)
+                .when(carrierConfig)
+                .getInt(eq(VcnManager.VCN_SAFE_MODE_TIMEOUT_SECONDS_KEY), anyInt());
+
+        verifyGetSafeModeTimeoutMs(
+                false /* isInTestMode */,
+                true /* isConfigTimeoutSupported */,
+                carrierConfig,
+                TimeUnit.SECONDS.toMillis(carrierConfigTimeoutSeconds));
+    }
+
+    @Test
+    public void testGetSafeModeTimeoutMs_configTimeoutSupported_carrierConfigNull()
+            throws Exception {
+        verifyGetSafeModeTimeoutMs(
+                false /* isInTestMode */,
+                true /* isConfigTimeoutSupported */,
+                null /* carrierConfig */,
+                TimeUnit.SECONDS.toMillis(SAFEMODE_TIMEOUT_SECONDS));
+    }
+
+    @Test
+    public void testGetSafeModeTimeoutMs_configTimeoutOverrideTestModeDefault() throws Exception {
+        final int carrierConfigTimeoutSeconds = 20;
+        final PersistableBundleWrapper carrierConfig = mock(PersistableBundleWrapper.class);
+        doReturn(carrierConfigTimeoutSeconds)
+                .when(carrierConfig)
+                .getInt(eq(VcnManager.VCN_SAFE_MODE_TIMEOUT_SECONDS_KEY), anyInt());
+
+        verifyGetSafeModeTimeoutMs(
+                true /* isInTestMode */,
+                true /* isConfigTimeoutSupported */,
+                carrierConfig,
+                TimeUnit.SECONDS.toMillis(carrierConfigTimeoutSeconds));
+    }
 }
diff --git a/tests/vcn/java/com/android/server/vcn/VcnGatewayConnectionTestBase.java b/tests/vcn/java/com/android/server/vcn/VcnGatewayConnectionTestBase.java
index edced87..342056a 100644
--- a/tests/vcn/java/com/android/server/vcn/VcnGatewayConnectionTestBase.java
+++ b/tests/vcn/java/com/android/server/vcn/VcnGatewayConnectionTestBase.java
@@ -226,6 +226,7 @@
         doReturn(mTestLooper.getLooper()).when(mVcnContext).getLooper();
         doReturn(mVcnNetworkProvider).when(mVcnContext).getVcnNetworkProvider();
         doReturn(mFeatureFlags).when(mVcnContext).getFeatureFlags();
+        doReturn(true).when(mVcnContext).isFlagSafeModeTimeoutConfigEnabled();
 
         doReturn(mUnderlyingNetworkController)
                 .when(mDeps)