diff --git a/tests/components/time/common.py b/tests/components/time/common.py
new file mode 100644
index 00000000000..f0a1c04a93f
--- /dev/null
+++ b/tests/components/time/common.py
@@ -0,0 +1,20 @@
+"""Common helpers for time entity component tests."""
+
+from datetime import time
+
+from homeassistant.components.time import TimeEntity
+
+from tests.common import MockEntity
+
+
+class MockTimeEntity(MockEntity, TimeEntity):
+    """Mock time class."""
+
+    @property
+    def native_value(self) -> time | None:
+        """Return the current time."""
+        return self._handle("native_value")
+
+    def set_value(self, value: time) -> None:
+        """Change the time."""
+        self._values["native_value"] = value
diff --git a/tests/components/time/test_init.py b/tests/components/time/test_init.py
index 20360279217..0f0dbe05e5b 100644
--- a/tests/components/time/test_init.py
+++ b/tests/components/time/test_init.py
@@ -2,7 +2,7 @@
 
 from datetime import time
 
-from homeassistant.components.time import DOMAIN, SERVICE_SET_VALUE, TimeEntity
+from homeassistant.components.time import DOMAIN, SERVICE_SET_VALUE
 from homeassistant.const import (
     ATTR_ENTITY_ID,
     ATTR_FRIENDLY_NAME,
@@ -12,23 +12,18 @@ from homeassistant.const import (
 from homeassistant.core import HomeAssistant
 from homeassistant.setup import async_setup_component
 
-
-class MockTimeEntity(TimeEntity):
-    """Mock time device to use in tests."""
-
-    def __init__(self, native_value=time(12, 0, 0)) -> None:
-        """Initialize mock time entity."""
-        self._attr_native_value = native_value
-
-    async def async_set_value(self, value: time) -> None:
-        """Set the value of the time."""
-        self._attr_native_value = value
+from tests.common import setup_test_component_platform
+from tests.components.time.common import MockTimeEntity
 
 
-async def test_date(hass: HomeAssistant, enable_custom_integrations: None) -> None:
+async def test_date(hass: HomeAssistant) -> None:
     """Test time entity."""
-    platform = getattr(hass.components, f"test.{DOMAIN}")
-    platform.init()
+    entity = MockTimeEntity(
+        name="test",
+        unique_id="unique_time",
+        native_value=time(1, 2, 3),
+    )
+    setup_test_component_platform(hass, DOMAIN, [entity])
 
     assert await async_setup_component(hass, DOMAIN, {DOMAIN: {CONF_PLATFORM: "test"}})
     await hass.async_block_till_done()
diff --git a/tests/testing_config/custom_components/test/time.py b/tests/testing_config/custom_components/test/time.py
deleted file mode 100644
index 998406d7830..00000000000
--- a/tests/testing_config/custom_components/test/time.py
+++ /dev/null
@@ -1,51 +0,0 @@
-"""Provide a mock time platform.
-
-Call init before using it in your tests to ensure clean test data.
-"""
-
-from datetime import time
-
-from homeassistant.components.time import TimeEntity
-
-from tests.common import MockEntity
-
-UNIQUE_TIME = "unique_time"
-
-ENTITIES = []
-
-
-class MockTimeEntity(MockEntity, TimeEntity):
-    """Mock time class."""
-
-    @property
-    def native_value(self):
-        """Return the native value of this time."""
-        return self._handle("native_value")
-
-    def set_value(self, value: time) -> None:
-        """Change the time."""
-        self._values["native_value"] = value
-
-
-def init(empty=False):
-    """Initialize the platform with entities."""
-    global ENTITIES
-
-    ENTITIES = (
-        []
-        if empty
-        else [
-            MockTimeEntity(
-                name="test",
-                unique_id=UNIQUE_TIME,
-                native_value=time(1, 2, 3),
-            ),
-        ]
-    )
-
-
-async def async_setup_platform(
-    hass, config, async_add_entities_callback, discovery_info=None
-):
-    """Return mock entities."""
-    async_add_entities_callback(ENTITIES)