diff --git a/generated/nidaqmx/_grpc_interpreter.py b/generated/nidaqmx/_grpc_interpreter.py
index 70a9d4113..35286d8b3 100644
--- a/generated/nidaqmx/_grpc_interpreter.py
+++ b/generated/nidaqmx/_grpc_interpreter.py
@@ -381,11 +381,10 @@ def cfg_samp_clk_timing(
                 samps_per_chan=samps_per_chan))
 
     def cfg_time_start_trig(self, task, when, timescale):
-        ts = GrpcTimestamp()
         response = self._invoke(
             self._client.CfgTimeStartTrig,
             grpc_types.CfgTimeStartTrigRequest(
-                task=task, when=convert_time_to_timestamp(when,ts),
+                task=task, when=convert_time_to_timestamp(when),
                 timescale_raw=timescale))
 
     def cfg_watchdog_ao_expir_states(
@@ -3135,12 +3134,11 @@ def set_trig_attribute_string(self, task, attribute, value):
                 task=task, attribute_raw=attribute, value=value))
 
     def set_trig_attribute_timestamp(self, task, attribute, value):
-        ts = GrpcTimestamp()
         response = self._invoke(
             self._client.SetTrigAttributeTimestamp,
             grpc_types.SetTrigAttributeTimestampRequest(
                 task=task, attribute_raw=attribute,
-                value=convert_time_to_timestamp(value,ts)))
+                value=convert_time_to_timestamp(value)))
 
     def set_trig_attribute_uint32(self, task, attribute, value):
         response = self._invoke(
diff --git a/generated/nidaqmx/_grpc_time.py b/generated/nidaqmx/_grpc_time.py
index e4e2beb1e..744eb6501 100644
--- a/generated/nidaqmx/_grpc_time.py
+++ b/generated/nidaqmx/_grpc_time.py
@@ -14,7 +14,7 @@
 _YS_PER_FS = 10**9
 
 
-def convert_time_to_timestamp(dt: Union[std_datetime, ht_datetime], ts: GrpcTimestamp) -> None:
+def convert_time_to_timestamp(dt: Union[std_datetime, ht_datetime], ts: Optional[GrpcTimestamp] = GrpcTimestamp()) -> GrpcTimestamp:
     utc_dt = dt.astimezone(tz=timezone.utc)
     seconds = int(utc_dt.timestamp())
 
@@ -30,6 +30,7 @@ def convert_time_to_timestamp(dt: Union[std_datetime, ht_datetime], ts: GrpcTime
         nanos = utc_dt.microsecond * _NS_PER_US
 
     ts.FromNanoseconds(seconds * _NS_PER_S + nanos)
+    return ts
 
 
 def convert_timestamp_to_time(ts: GrpcTimestamp, tzinfo: Optional[timezone] = None) -> ht_datetime:
diff --git a/generated/nidaqmx/_lib_time.py b/generated/nidaqmx/_lib_time.py
index 6d2656fc0..6bee16e3c 100644
--- a/generated/nidaqmx/_lib_time.py
+++ b/generated/nidaqmx/_lib_time.py
@@ -2,7 +2,7 @@
 
 import ctypes
 import functools
-from datetime import timezone
+from datetime import timezone, timedelta
 from datetime import datetime as std_datetime
 from hightime import datetime as ht_datetime
 from typing import Optional, Union
@@ -58,6 +58,12 @@ def from_datetime(cls, dt: Union[std_datetime, ht_datetime]) -> AbsoluteTime:
 
         return AbsoluteTime(lsb=lsb, msb=timestamp_1904_epoch)
 
+    def convert_to_local_timezone(self, expected_time_utc):
+        current_time_utc = ht_datetime.now(timezone.utc)
+        local_timezone_offset = current_time_utc.astimezone().utcoffset()
+        local_expected_time = expected_time_utc + local_timezone_offset
+        return local_expected_time
+
     def to_datetime(self, tzinfo: Optional[timezone] = None) -> ht_datetime:
         # First, calculate whole seconds by converting from the 1904 to 1970 epoch.
         timestamp_1904_epoch = self.msb
@@ -79,12 +85,18 @@ def to_datetime(self, tzinfo: Optional[timezone] = None) -> ht_datetime:
         )
         yoctosecond = remainder_yoctoseconds
 
-        # Start with UTC
-        dt = ht_datetime.fromtimestamp(timestamp_1970_epoch, timezone.utc)
+        if not is_positive:
+            datetime_1904 = ht_datetime(1904, 1, 1)
+            dt = datetime_1904 + timedelta(seconds=self.msb)
+        else:
+            dt = ht_datetime.fromtimestamp(timestamp_1970_epoch, timezone.utc)
         # Add in precision
         dt = dt.replace(microsecond=microsecond, femtosecond=femtosecond, yoctosecond=yoctosecond)
         # Then convert to requested timezone
-        return dt.astimezone(tz=tzinfo)
+        if not is_positive:
+            return self.convert_to_local_timezone(dt)
+        else:
+            return dt.astimezone(tz=tzinfo)
 
     def __str__(self) -> str:
         return f"AbsoluteTime(lsb=0x{self.lsb:x}, msb=0x{self.msb:x})"
diff --git a/src/codegen/templates/grpc_interpreter/default_grpc_function_call.py.mako b/src/codegen/templates/grpc_interpreter/default_grpc_function_call.py.mako
index 4ab420c3a..4dada7895 100644
--- a/src/codegen/templates/grpc_interpreter/default_grpc_function_call.py.mako
+++ b/src/codegen/templates/grpc_interpreter/default_grpc_function_call.py.mako
@@ -40,9 +40,6 @@
     %for parameter_name, parameter_dtype in get_numpy_array_params(function).items():
         _validate_array_dtype(${parameter_name}, ${parameter_dtype})
     %endfor
-%endif
-%if "convert_time_to_timestamp" in grpc_interpreter_params:
-        ts = GrpcTimestamp()
 %endif
         response = self._invoke(
             self._client.${snake_to_pascal(function.function_name)},
diff --git a/src/codegen/utilities/interpreter_helpers.py b/src/codegen/utilities/interpreter_helpers.py
index 8d86eedcf..f0a5711c7 100644
--- a/src/codegen/utilities/interpreter_helpers.py
+++ b/src/codegen/utilities/interpreter_helpers.py
@@ -356,7 +356,7 @@ def get_grpc_interpreter_call_params(func, params):
             elif param.is_grpc_enum or (param.is_enum and not param.is_list):
                 grpc_params.append(f"{name}_raw={param.parameter_name}")
             elif param.type == "CVIAbsoluteTime":
-                grpc_params.append(f"{name}=convert_time_to_timestamp({param.parameter_name},ts)")
+                grpc_params.append(f"{name}=convert_time_to_timestamp({param.parameter_name})")
             else:
                 if is_write_bytes_param(param):
                     grpc_params.append(f"{name}={param.parameter_name}.tobytes()")
diff --git a/src/handwritten/_grpc_time.py b/src/handwritten/_grpc_time.py
index e4e2beb1e..744eb6501 100644
--- a/src/handwritten/_grpc_time.py
+++ b/src/handwritten/_grpc_time.py
@@ -14,7 +14,7 @@
 _YS_PER_FS = 10**9
 
 
-def convert_time_to_timestamp(dt: Union[std_datetime, ht_datetime], ts: GrpcTimestamp) -> None:
+def convert_time_to_timestamp(dt: Union[std_datetime, ht_datetime], ts: Optional[GrpcTimestamp] = GrpcTimestamp()) -> GrpcTimestamp:
     utc_dt = dt.astimezone(tz=timezone.utc)
     seconds = int(utc_dt.timestamp())
 
@@ -30,6 +30,7 @@ def convert_time_to_timestamp(dt: Union[std_datetime, ht_datetime], ts: GrpcTime
         nanos = utc_dt.microsecond * _NS_PER_US
 
     ts.FromNanoseconds(seconds * _NS_PER_S + nanos)
+    return ts
 
 
 def convert_timestamp_to_time(ts: GrpcTimestamp, tzinfo: Optional[timezone] = None) -> ht_datetime:
diff --git a/src/handwritten/_lib_time.py b/src/handwritten/_lib_time.py
index 6d2656fc0..6bee16e3c 100644
--- a/src/handwritten/_lib_time.py
+++ b/src/handwritten/_lib_time.py
@@ -2,7 +2,7 @@
 
 import ctypes
 import functools
-from datetime import timezone
+from datetime import timezone, timedelta
 from datetime import datetime as std_datetime
 from hightime import datetime as ht_datetime
 from typing import Optional, Union
@@ -58,6 +58,12 @@ def from_datetime(cls, dt: Union[std_datetime, ht_datetime]) -> AbsoluteTime:
 
         return AbsoluteTime(lsb=lsb, msb=timestamp_1904_epoch)
 
+    def convert_to_local_timezone(self, expected_time_utc):
+        current_time_utc = ht_datetime.now(timezone.utc)
+        local_timezone_offset = current_time_utc.astimezone().utcoffset()
+        local_expected_time = expected_time_utc + local_timezone_offset
+        return local_expected_time
+
     def to_datetime(self, tzinfo: Optional[timezone] = None) -> ht_datetime:
         # First, calculate whole seconds by converting from the 1904 to 1970 epoch.
         timestamp_1904_epoch = self.msb
@@ -79,12 +85,18 @@ def to_datetime(self, tzinfo: Optional[timezone] = None) -> ht_datetime:
         )
         yoctosecond = remainder_yoctoseconds
 
-        # Start with UTC
-        dt = ht_datetime.fromtimestamp(timestamp_1970_epoch, timezone.utc)
+        if not is_positive:
+            datetime_1904 = ht_datetime(1904, 1, 1)
+            dt = datetime_1904 + timedelta(seconds=self.msb)
+        else:
+            dt = ht_datetime.fromtimestamp(timestamp_1970_epoch, timezone.utc)
         # Add in precision
         dt = dt.replace(microsecond=microsecond, femtosecond=femtosecond, yoctosecond=yoctosecond)
         # Then convert to requested timezone
-        return dt.astimezone(tz=tzinfo)
+        if not is_positive:
+            return self.convert_to_local_timezone(dt)
+        else:
+            return dt.astimezone(tz=tzinfo)
 
     def __str__(self) -> str:
         return f"AbsoluteTime(lsb=0x{self.lsb:x}, msb=0x{self.msb:x})"
diff --git a/tests/component/_task_modules/test_triggers_properties.py b/tests/component/_task_modules/test_triggers_properties.py
index 470a7d6c9..6f4dcec03 100644
--- a/tests/component/_task_modules/test_triggers_properties.py
+++ b/tests/component/_task_modules/test_triggers_properties.py
@@ -7,7 +7,7 @@
 from nidaqmx.error_codes import DAQmxErrors
 from nidaqmx.errors import DaqError
 from nidaqmx.task import Task
-from tests.unit._time_utils import JAN_01_2002_HIGHTIME
+from tests.unit._time_utils import JAN_01_2002_HIGHTIME, JAN_01_1904_HIGHTIME
 
 
 @pytest.fixture()
@@ -119,15 +119,20 @@ def test___ai_task___reset_uint32_property___returns_default_value(ai_voltage_ta
     assert ai_voltage_task.triggers.reference_trigger.pretrig_samples == 2
 
 
-def test___ai_voltage_field_daq_task___get_timestamp_property___throws_os_error(
+def test___ai_voltage_field_daq_task___get_timestamp_property___returns_default_value(
     ai_voltage_field_daq_task: Task,
 ):
     ai_voltage_field_daq_task.timing.cfg_samp_clk_timing(1000)
 
-    # timestamp 1904-01-01 is out of range of supported timestamp values
-    with pytest.raises(OSError) as os_error:
-        ai_voltage_field_daq_task.triggers.start_trigger.trig_when
-    assert os_error.value.errno == 22
+    when_value = ai_voltage_field_daq_task.triggers.start_trigger.trig_when
+
+    localized_default_value = convert_to_local_timezone(JAN_01_1904_HIGHTIME)
+    assert when_value.year == localized_default_value.year
+    assert when_value.month == localized_default_value.month
+    assert when_value.day == localized_default_value.day
+    assert when_value.hour == localized_default_value.hour
+    assert when_value.minute == localized_default_value.minute
+    assert when_value.second == localized_default_value.second
 
 
 def test___ai_voltage_field_daq_task___set_timestamp_property___returns_assigned_value(
@@ -148,7 +153,7 @@ def test___ai_voltage_field_daq_task___set_timestamp_property___returns_assigned
     assert when_value.second == localized_value_to_test.second
 
 
-def test___ai_voltage_field_daq_task___reset_timestamp_property___throws_os_error(
+def test___ai_voltage_field_daq_task___reset_timestamp_property___returns_default_value(
     ai_voltage_field_daq_task: Task,
 ):
     ai_voltage_field_daq_task.timing.cfg_samp_clk_timing(1000)
@@ -156,7 +161,11 @@ def test___ai_voltage_field_daq_task___reset_timestamp_property___throws_os_erro
 
     del ai_voltage_field_daq_task.triggers.start_trigger.trig_when
 
-    # timestamp 1904-01-01 is out of range of supported timestamp values
-    with pytest.raises(OSError) as os_error:
-        ai_voltage_field_daq_task.triggers.start_trigger.trig_when
-    assert os_error.value.errno == 22
+    when_value = ai_voltage_field_daq_task.triggers.start_trigger.trig_when
+    localized_default_value = convert_to_local_timezone(JAN_01_1904_HIGHTIME)
+    assert when_value.year == localized_default_value.year
+    assert when_value.month == localized_default_value.month
+    assert when_value.day == localized_default_value.day
+    assert when_value.hour == localized_default_value.hour
+    assert when_value.minute == localized_default_value.minute
+    assert when_value.second == localized_default_value.second
diff --git a/tests/unit/_time_utils.py b/tests/unit/_time_utils.py
index 365a02f85..640091054 100644
--- a/tests/unit/_time_utils.py
+++ b/tests/unit/_time_utils.py
@@ -10,3 +10,5 @@
 
 JAN_01_2002_DATETIME = std_datetime(2002, 1, 1, tzinfo=timezone.utc)
 JAN_01_2002_HIGHTIME = ht_datetime(2002, 1, 1, tzinfo=timezone.utc)
+JAN_01_1904_DATETIME = std_datetime(1904, 1, 1, tzinfo=timezone.utc)
+JAN_01_1904_HIGHTIME = ht_datetime(1904, 1, 1, tzinfo=timezone.utc)
diff --git a/tests/unit/test_grpc_time.py b/tests/unit/test_grpc_time.py
index 43673d35c..b6a7c0eb1 100644
--- a/tests/unit/test_grpc_time.py
+++ b/tests/unit/test_grpc_time.py
@@ -1,17 +1,17 @@
-from datetime import datetime as std_datetime
-from datetime import timedelta, timezone
+from datetime import datetime as std_datetime, timedelta, timezone
 
 import pytest
 from hightime import datetime as ht_datetime
 
 from tests.unit._time_utils import (
-    JAN_01_2002_TIMESTAMP_1970_EPOCH,
     JAN_01_2002_DATETIME,
     JAN_01_2002_HIGHTIME,
+    JAN_01_2002_TIMESTAMP_1970_EPOCH,
 )
 
 try:
     from google.protobuf.timestamp_pb2 import Timestamp as GrpcTimestamp
+
     import nidaqmx._grpc_time as grpc_time
     import nidaqmx._stubs.nidaqmx_pb2 as nidaqmx_pb2
 except ImportError:
@@ -22,8 +22,7 @@
 
 @pytest.mark.parametrize("from_dt", [(JAN_01_2002_DATETIME), (JAN_01_2002_HIGHTIME)])
 def test___utc_datetime___convert_to_timestamp___is_reversible(from_dt):
-    to_ts = GrpcTimestamp()
-    grpc_time.convert_time_to_timestamp(from_dt, to_ts)
+    to_ts = grpc_time.convert_time_to_timestamp(from_dt)
     roundtrip_dt = grpc_time.convert_timestamp_to_time(to_ts, tzinfo=timezone.utc)
 
     total_nanoseconds = to_ts.ToNanoseconds()
@@ -73,8 +72,7 @@ def test___tz_datetime___convert_to_timestamp___is_reversible(
 ):
     from_dt = datetime_cls(2002, 1, 1, tzinfo=tzinfo)
 
-    to_ts = GrpcTimestamp()
-    grpc_time.convert_time_to_timestamp(from_dt, to_ts)
+    to_ts = grpc_time.convert_time_to_timestamp(from_dt)
     roundtrip_dt = grpc_time.convert_timestamp_to_time(to_ts, tzinfo=tzinfo)
 
     assert to_ts.seconds == JAN_01_2002_TIMESTAMP_1970_EPOCH + expected_offset
@@ -104,8 +102,7 @@ def test___datetime_with_microseconds___convert_to_timestamp___is_reversible(
 ):
     from_dt = base_dt.replace(microsecond=microsecond)
 
-    to_ts = GrpcTimestamp()
-    grpc_time.convert_time_to_timestamp(from_dt, to_ts)
+    to_ts = grpc_time.convert_time_to_timestamp(from_dt)
     roundtrip_dt = grpc_time.convert_timestamp_to_time(to_ts, tzinfo=timezone.utc)
 
     assert to_ts.seconds == JAN_01_2002_TIMESTAMP_1970_EPOCH
@@ -135,8 +132,7 @@ def test___datetime_with_femtoseconds___convert_to_timestamp___is_reversible(
 ):
     from_dt = base_dt.replace(femtosecond=femtosecond)
 
-    to_ts = GrpcTimestamp()
-    grpc_time.convert_time_to_timestamp(from_dt, to_ts)
+    to_ts = grpc_time.convert_time_to_timestamp(from_dt)
     roundtrip_dt = grpc_time.convert_timestamp_to_time(to_ts, tzinfo=timezone.utc)
 
     assert to_ts.seconds == JAN_01_2002_TIMESTAMP_1970_EPOCH