4 files changed, 11 insertions, 0 deletions
diff --git a/activemodel/lib/active_model/type/boolean.rb b/activemodel/lib/active_model/type/boolean.rb
index bcdbab0343..f6c6efbc87 100644
--- a/activemodel/lib/active_model/type/boolean.rb
+++ b/activemodel/lib/active_model/type/boolean.rb
@@ -20,6 +20,10 @@ module ActiveModel
         :boolean
       end
 
+      def serialize(value) # :nodoc:
+        cast(value)
+      end
+
       private
 
         def cast_value(value)
diff --git a/activemodel/lib/active_model/type/helpers/time_value.rb b/activemodel/lib/active_model/type/helpers/time_value.rb
index 250c4021c6..cb6aa67a9d 100644
--- a/activemodel/lib/active_model/type/helpers/time_value.rb
+++ b/activemodel/lib/active_model/type/helpers/time_value.rb
@@ -1,5 +1,6 @@
 # frozen_string_literal: true
 
+require "active_support/core_ext/string/zones"
 require "active_support/core_ext/time/zones"
 
 module ActiveModel
diff --git a/activemodel/lib/active_model/type/time.rb b/activemodel/lib/active_model/type/time.rb
index c094ee0013..b3056b1333 100644
--- a/activemodel/lib/active_model/type/time.rb
+++ b/activemodel/lib/active_model/type/time.rb
@@ -18,6 +18,8 @@ module ActiveModel
         case value
         when ::String
           value = "2000-01-01 #{value}"
+          time_hash = ::Date._parse(value)
+          return if time_hash[:hour].nil?
         when ::Time
           value = value.change(year: 2000, day: 1, month: 1)
         end
diff --git a/activemodel/lib/active_model/type/value.rb b/activemodel/lib/active_model/type/value.rb
index a8ea6a2c22..b6914dd63c 100644
--- a/activemodel/lib/active_model/type/value.rb
+++ b/activemodel/lib/active_model/type/value.rb
@@ -90,6 +90,10 @@ module ActiveModel
         false
       end
 
+      def force_equality?(_value) # :nodoc:
+        false
+      end
+
       def map(value) # :nodoc:
         yield value
       end