Add support for multiple time triggers in automations (#37975)

* Add support for multiple time triggers in automations

* Attach with single callback

* Patch time in tests

* Improve test coverage

* Adjusting my facepalm moment

homeassistant/components/automation/time.py

@@ -13,20 +13,37 @@ from homeassistant.helpers.event import async_track_time_change
 _LOGGER = logging.getLogger(__name__)
 
 TRIGGER_SCHEMA = vol.Schema(
-    {vol.Required(CONF_PLATFORM): "time", vol.Required(CONF_AT): cv.time}
+    {
+        vol.Required(CONF_PLATFORM): "time",
+        vol.Required(CONF_AT): vol.All(cv.ensure_list, [cv.time]),
+    }
 )
 
 
 async def async_attach_trigger(hass, config, action, automation_info):
     """Listen for state changes based on configuration."""
-    at_time = config.get(CONF_AT)
-    hours, minutes, seconds = at_time.hour, at_time.minute, at_time.second
+    at_times = config[CONF_AT]
 
     @callback
     def time_automation_listener(now):
         """Listen for time changes and calls action."""
         hass.async_run_job(action, {"trigger": {"platform": "time", "now": now}})
 
-    return async_track_time_change(
-        hass, time_automation_listener, hour=hours, minute=minutes, second=seconds
-    )
+    removes = [
+        async_track_time_change(
+            hass,
+            time_automation_listener,
+            hour=at_time.hour,
+            minute=at_time.minute,
+            second=at_time.second,
+        )
+        for at_time in at_times
+    ]
+
+    @callback
+    def remove_track_time_changes():
+        """Remove tracked time changes."""
+        for remove in removes:
+            remove()
+
+    return remove_track_time_changes