diff --git a/homeassistant/const.py b/homeassistant/const.py
index c01a435ca85..4dcc171d35c 100644
--- a/homeassistant/const.py
+++ b/homeassistant/const.py
@@ -168,6 +168,7 @@ EVENT_SERVICE_REGISTERED = 'service_registered'
 EVENT_SERVICE_REMOVED = 'service_removed'
 EVENT_LOGBOOK_ENTRY = 'logbook_entry'
 EVENT_THEMES_UPDATED = 'themes_updated'
+EVENT_TIMER_OUT_OF_SYNC = 'timer_out_of_sync'
 
 # #### DEVICE CLASSES ####
 DEVICE_CLASS_BATTERY = 'battery'
@@ -216,6 +217,7 @@ ATTR_CREDENTIALS = 'credentials'
 ATTR_NOW = 'now'
 ATTR_DATE = 'date'
 ATTR_TIME = 'time'
+ATTR_SECONDS = 'seconds'
 
 # Contains domain, service for a SERVICE_CALL event
 ATTR_DOMAIN = 'domain'
diff --git a/homeassistant/core.py b/homeassistant/core.py
index d1f811502e0..1754a8b5014 100644
--- a/homeassistant/core.py
+++ b/homeassistant/core.py
@@ -29,11 +29,11 @@ from voluptuous.humanize import humanize_error
 
 from homeassistant.const import (
     ATTR_DOMAIN, ATTR_FRIENDLY_NAME, ATTR_NOW, ATTR_SERVICE,
-    ATTR_SERVICE_CALL_ID, ATTR_SERVICE_DATA, EVENT_CALL_SERVICE,
+    ATTR_SERVICE_CALL_ID, ATTR_SERVICE_DATA, ATTR_SECONDS, EVENT_CALL_SERVICE,
     EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP,
+    EVENT_HOMEASSISTANT_CLOSE, EVENT_SERVICE_REMOVED,
     EVENT_SERVICE_EXECUTED, EVENT_SERVICE_REGISTERED, EVENT_STATE_CHANGED,
-    EVENT_TIME_CHANGED, MATCH_ALL, EVENT_HOMEASSISTANT_CLOSE,
-    EVENT_SERVICE_REMOVED, __version__)
+    EVENT_TIME_CHANGED, EVENT_TIMER_OUT_OF_SYNC, MATCH_ALL, __version__)
 from homeassistant import loader
 from homeassistant.exceptions import (
     HomeAssistantError, InvalidEntityFormatError, InvalidStateError)
@@ -1297,8 +1297,11 @@ def _async_create_timer(hass: HomeAssistant) -> None:
         hass.bus.async_fire(EVENT_TIME_CHANGED,
                             {ATTR_NOW: now})
 
-        if monotonic() > target + 1:
-            _LOGGER.error('Timer got out of sync. Resetting')
+        # If we are more than a second late, a tick was missed
+        late = monotonic() - target
+        if late > 1:
+            hass.bus.async_fire(EVENT_TIMER_OUT_OF_SYNC,
+                                {ATTR_SECONDS: late})
 
         schedule_tick(now)
 
diff --git a/tests/test_core.py b/tests/test_core.py
index d88257abfb4..7ab624447c5 100644
--- a/tests/test_core.py
+++ b/tests/test_core.py
@@ -19,9 +19,9 @@ import homeassistant.util.dt as dt_util
 from homeassistant.util.unit_system import (METRIC_SYSTEM)
 from homeassistant.const import (
     __version__, EVENT_STATE_CHANGED, ATTR_FRIENDLY_NAME, CONF_UNIT_SYSTEM,
-    ATTR_NOW, EVENT_TIME_CHANGED, EVENT_HOMEASSISTANT_STOP,
-    EVENT_HOMEASSISTANT_CLOSE, EVENT_SERVICE_REGISTERED, EVENT_SERVICE_REMOVED,
-    EVENT_SERVICE_EXECUTED)
+    ATTR_NOW, EVENT_TIME_CHANGED, EVENT_TIMER_OUT_OF_SYNC, ATTR_SECONDS,
+    EVENT_HOMEASSISTANT_STOP, EVENT_HOMEASSISTANT_CLOSE,
+    EVENT_SERVICE_REGISTERED, EVENT_SERVICE_REMOVED, EVENT_SERVICE_EXECUTED)
 
 from tests.common import get_test_home_assistant, async_mock_service
 
@@ -916,12 +916,13 @@ def test_timer_out_of_sync(mock_monotonic, loop):
 
     delay, callback, target = hass.loop.call_later.mock_calls[0][1]
 
-    with patch.object(ha, '_LOGGER', MagicMock()) as mock_logger, \
-            patch('homeassistant.core.dt_util.utcnow',
-                  return_value=datetime(2018, 12, 31, 3, 4, 8, 200000)):
+    with patch('homeassistant.core.dt_util.utcnow',
+               return_value=datetime(2018, 12, 31, 3, 4, 8, 200000)):
         callback(target)
 
-        assert len(mock_logger.error.mock_calls) == 1
+        event_type, event_data = hass.bus.async_fire.mock_calls[1][1]
+        assert event_type == EVENT_TIMER_OUT_OF_SYNC
+        assert abs(event_data[ATTR_SECONDS] - 2.433333) < 0.001
 
         assert len(funcs) == 2
         fire_time_event, stop_timer = funcs