diff --git a/.strict-typing b/.strict-typing
index a2adc5b0de4..2d7a22cc30a 100644
--- a/.strict-typing
+++ b/.strict-typing
@@ -103,6 +103,7 @@ homeassistant.components.cover.*
 homeassistant.components.cpuspeed.*
 homeassistant.components.crownstone.*
 homeassistant.components.date.*
+homeassistant.components.datetime.*
 homeassistant.components.deconz.*
 homeassistant.components.demo.*
 homeassistant.components.derivative.*
diff --git a/mypy.ini b/mypy.ini
index 4c6b9a4ac6a..a2b7fdbb025 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -790,6 +790,16 @@ disallow_untyped_defs = true
 warn_return_any = true
 warn_unreachable = true
 
+[mypy-homeassistant.components.datetime.*]
+check_untyped_defs = true
+disallow_incomplete_defs = true
+disallow_subclassing_any = true
+disallow_untyped_calls = true
+disallow_untyped_decorators = true
+disallow_untyped_defs = true
+warn_return_any = true
+warn_unreachable = true
+
 [mypy-homeassistant.components.deconz.*]
 check_untyped_defs = true
 disallow_incomplete_defs = true