Add config flow for Time & Date (#104183)

Co-authored-by: Erik <erik@montnemery.com>

tests/components/time_date/test_init.py

@@ -0,0 +1,18 @@
+"""The tests for the Time & Date component."""
+
+from homeassistant.core import HomeAssistant
+
+from . import load_int
+
+
+async def test_setup_and_remove_config_entry(hass: HomeAssistant) -> None:
+    """Test setting up and removing a config entry."""
+    entry = await load_int(hass)
+
+    state = hass.states.get("sensor.time")
+    assert state is not None
+
+    assert await hass.config_entries.async_remove(entry.entry_id)
+    await hass.async_block_till_done()
+
+    assert hass.states.get("sensor.time") is None