diff --git a/CHANGELOG.MD b/CHANGELOG.MD
index f8006bb..778e70c 100644
--- a/CHANGELOG.MD
+++ b/CHANGELOG.MD
@@ -1,3 +1,13 @@
+## Subroutine 4.1.4
+
+Fields using the time/timestamp/datetime caster will now default back to the old behavior, and use a `precision:` option to opt-in to the new behavior introduced in `v4.1.1`.
+
+`precision: :seconds` will retain the old behavior of always parsing to a new Time object
+with floored sub-second precision, but applied more forcefully than before as it would have parsed whatever you passed to it. (This is the default, now.)
+
+`precision: :high` will now use the new functionality of re-using Time objects when they
+are passed in, or if not parsing exactly the provided string as to a Time object.
+
 ## Subroutine 4.1.1
 
 Fields using the time/timestamp/datetime caster will now return exactly the passed in value
diff --git a/lib/subroutine/type_caster.rb b/lib/subroutine/type_caster.rb
index c8ea847..50a2130 100644
--- a/lib/subroutine/type_caster.rb
+++ b/lib/subroutine/type_caster.rb
@@ -4,11 +4,14 @@
 require 'time'
 require 'bigdecimal'
 require 'securerandom'
+require 'active_support/core_ext/date_time/acts_like'
+require 'active_support/core_ext/date_time/calculations'
 require 'active_support/core_ext/object/acts_like'
 require 'active_support/core_ext/object/blank'
 require 'active_support/core_ext/object/try'
 require 'active_support/core_ext/array/wrap'
 require 'active_support/core_ext/time/acts_like'
+require 'active_support/core_ext/time/calculations'
 
 module Subroutine
   module TypeCaster
@@ -117,13 +120,23 @@ def self.cast(value, options = {})
   ::Date.parse(String(value))
 end
 
-::Subroutine::TypeCaster.register :time, :timestamp, :datetime do |value, _options = {}|
+::Subroutine::TypeCaster.register :time, :timestamp, :datetime do |value, options = {}|
   next nil unless value.present?
 
-  if value.try(:acts_like?, :time)
-    value
-  else
-    ::Time.parse(String(value))
+  if options[:precision] == :high
+    if value.try(:acts_like?, :time)
+      value.to_time
+    else
+      ::Time.parse(String(value))
+    end
+  else # precision == :seconds
+    time = if value.try(:acts_like?, :time)
+      value.to_time
+    else
+      ::Time.parse(String(value))
+    end
+
+    time.change(usec: 0)
   end
 end
 
diff --git a/lib/subroutine/version.rb b/lib/subroutine/version.rb
index 0eb2a84..5d5c4a6 100644
--- a/lib/subroutine/version.rb
+++ b/lib/subroutine/version.rb
@@ -4,7 +4,7 @@ module Subroutine
 
   MAJOR = 4
   MINOR = 1
-  PATCH = 3
+  PATCH = 4
   PRE   = nil
 
   VERSION = [MAJOR, MINOR, PATCH, PRE].compact.join(".")
diff --git a/test/subroutine/type_caster_test.rb b/test/subroutine/type_caster_test.rb
index 692e0cc..2369323 100644
--- a/test/subroutine/type_caster_test.rb
+++ b/test/subroutine/type_caster_test.rb
@@ -269,7 +269,7 @@ def test_date_inputs
       assert_nil op.date_input
     end
 
-    def test_time_inputs
+    def test_time_inputs__with_seconds_precision
       op.time_input = nil
       assert_nil op.time_input
 
@@ -284,22 +284,139 @@ def test_time_inputs
       assert_equal 0, op.time_input.min
       assert_equal 0, op.time_input.sec
 
+      op.time_input = ::DateTime.new(2022, 12, 22)
+      assert_equal ::Time, op.time_input.class
+      refute_equal ::DateTime, op.time_input.class
+
+      assert_equal 0, op.time_input.utc_offset
+      assert_equal 2022, op.time_input.year
+      assert_equal 12, op.time_input.month
+      assert_equal 22, op.time_input.day
+      assert_equal 0, op.time_input.hour
+      assert_equal 0, op.time_input.min
+      assert_equal 0, op.time_input.sec
+
       op.time_input = '2023-05-05T10:00:30.123456Z'
       assert_equal ::Time, op.time_input.class
       refute_equal ::DateTime, op.time_input.class
 
+      assert_equal 0, op.time_input.utc_offset
+      assert_equal 2023, op.time_input.year
+      assert_equal 5, op.time_input.month
+      assert_equal 5, op.time_input.day
+      assert_equal 10, op.time_input.hour
+      assert_equal 0, op.time_input.min
+      assert_equal 30, op.time_input.sec
+      assert_equal 0, op.time_input.usec
+
+      op.time_input = '2023-05-05T10:00:30Z'
+      assert_equal ::Time, op.time_input.class
+      assert_equal 0, op.time_input.utc_offset
       assert_equal 2023, op.time_input.year
       assert_equal 5, op.time_input.month
       assert_equal 5, op.time_input.day
       assert_equal 10, op.time_input.hour
       assert_equal 0, op.time_input.min
       assert_equal 30, op.time_input.sec
-      assert_equal 123456, op.time_input.usec
+      assert_equal 0, op.time_input.usec
 
-      time = Time.at(1678741605.123456)
+      op.time_input = '2024-11-11T16:42:23.246+0100'
+      assert_equal ::Time, op.time_input.class
+      assert_equal 3600, op.time_input.utc_offset
+      assert_equal 2024, op.time_input.year
+      assert_equal 11, op.time_input.month
+      assert_equal 11, op.time_input.day
+      assert_equal 16, op.time_input.hour
+      assert_equal 42, op.time_input.min
+      assert_equal 23, op.time_input.sec
+      assert_equal 0, op.time_input.usec
+
+      time = Time.at(1678741605.123456).utc
       op.time_input = time
-      assert_equal time, op.time_input
-      assert_equal time.object_id, op.time_input.object_id
+      refute_equal time, op.time_input
+      refute_equal time.object_id, op.time_input.object_id
+      assert_equal 2023, op.time_input.year
+      assert_equal 3, op.time_input.month
+      assert_equal 13, op.time_input.day
+      assert_equal 21, op.time_input.hour
+      assert_equal 6, op.time_input.min
+      assert_equal 45, op.time_input.sec
+      assert_equal 0, op.time_input.usec
+    end
+
+    def test_time_inputs__with_high_precision
+      op.precise_time_input = nil
+      assert_nil op.precise_time_input
+
+      op.precise_time_input = '2022-12-22'
+      assert_equal ::Time, op.precise_time_input.class
+      refute_equal ::DateTime, op.precise_time_input.class
+
+      assert_equal 2022, op.precise_time_input.year
+      assert_equal 12, op.precise_time_input.month
+      assert_equal 22, op.precise_time_input.day
+      assert_equal 0, op.precise_time_input.hour
+      assert_equal 0, op.precise_time_input.min
+      assert_equal 0, op.precise_time_input.sec
+
+      op.precise_time_input = ::DateTime.new(2022, 12, 22)
+      assert_equal ::Time, op.precise_time_input.class
+      refute_equal ::DateTime, op.precise_time_input.class
+
+      assert_equal 0, op.precise_time_input.utc_offset
+      assert_equal 2022, op.precise_time_input.year
+      assert_equal 12, op.precise_time_input.month
+      assert_equal 22, op.precise_time_input.day
+      assert_equal 0, op.precise_time_input.hour
+      assert_equal 0, op.precise_time_input.min
+      assert_equal 0, op.precise_time_input.sec
+
+      op.precise_time_input = '2023-05-05T10:00:30.123456Z'
+      assert_equal ::Time, op.precise_time_input.class
+      refute_equal ::DateTime, op.precise_time_input.class
+
+      assert_equal 0, op.precise_time_input.utc_offset
+      assert_equal 2023, op.precise_time_input.year
+      assert_equal 5, op.precise_time_input.month
+      assert_equal 5, op.precise_time_input.day
+      assert_equal 10, op.precise_time_input.hour
+      assert_equal 0, op.precise_time_input.min
+      assert_equal 30, op.precise_time_input.sec
+      assert_equal 123456, op.precise_time_input.usec
+
+      op.precise_time_input = '2023-05-05T10:00:30Z'
+      assert_equal ::Time, op.precise_time_input.class
+      assert_equal 0, op.precise_time_input.utc_offset
+      assert_equal 2023, op.precise_time_input.year
+      assert_equal 5, op.precise_time_input.month
+      assert_equal 5, op.precise_time_input.day
+      assert_equal 10, op.precise_time_input.hour
+      assert_equal 0, op.precise_time_input.min
+      assert_equal 30, op.precise_time_input.sec
+      assert_equal 0, op.precise_time_input.usec
+
+      op.precise_time_input = '2024-11-11T16:42:23.246+0100'
+      assert_equal ::Time, op.precise_time_input.class
+      assert_equal 3600, op.precise_time_input.utc_offset
+      assert_equal 2024, op.precise_time_input.year
+      assert_equal 11, op.precise_time_input.month
+      assert_equal 11, op.precise_time_input.day
+      assert_equal 16, op.precise_time_input.hour
+      assert_equal 42, op.precise_time_input.min
+      assert_equal 23, op.precise_time_input.sec
+      assert_equal 246000, op.precise_time_input.usec
+
+      time = Time.at(1678741605.123456).utc
+      op.precise_time_input = time
+      assert_equal time, op.precise_time_input
+      assert_equal time.object_id, op.precise_time_input.object_id
+      assert_equal 2023, op.precise_time_input.year
+      assert_equal 3, op.precise_time_input.month
+      assert_equal 13, op.precise_time_input.day
+      assert_equal 21, op.precise_time_input.hour
+      assert_equal 6, op.precise_time_input.min
+      assert_equal 45, op.precise_time_input.sec
+      assert_equal 123456, op.precise_time_input.usec
     end
 
     def test_iso_date_inputs
diff --git a/test/support/ops.rb b/test/support/ops.rb
index 73acd6a..f5a2bc4 100644
--- a/test/support/ops.rb
+++ b/test/support/ops.rb
@@ -173,6 +173,7 @@ class TypeCastOp < ::Subroutine::Op
   boolean :boolean_input
   date :date_input
   time :time_input, default: -> { Time.now }
+  time :precise_time_input, precision: :high
   iso_date :iso_date_input
   iso_time :iso_time_input
   object :object_input