1 files changed, 30 insertions, 0 deletions
diff --git a/actionview/lib/action_view/helpers/tags/datetime_field.rb b/actionview/lib/action_view/helpers/tags/datetime_field.rb
new file mode 100644
index 0000000000..b2cee9d198
--- /dev/null
+++ b/actionview/lib/action_view/helpers/tags/datetime_field.rb
@@ -0,0 +1,30 @@
+module ActionView
+  module Helpers
+    module Tags # :nodoc:
+      class DatetimeField < TextField # :nodoc:
+        def render
+          options = @options.stringify_keys
+          options["value"] ||= format_date(value(object))
+          options["min"] = format_date(datetime_value(options["min"]))
+          options["max"] = format_date(datetime_value(options["max"]))
+          @options = options
+          super
+        end
+
+        private
+
+          def format_date(value)
+            value.try(:strftime, "%Y-%m-%dT%T.%L%z")
+          end
+
+          def datetime_value(value)
+            if value.is_a? String
+              DateTime.parse(value) rescue nil
+            else
+              value
+            end
+          end
+      end
+    end
+  end
+end