diff --git a/CHANGELOG.md b/CHANGELOG.md
index ecd845d..3dd86cf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,12 @@
 
 Observes [Semantic Versioning](https://semver.org/spec/v2.0.0.html) standard and [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) convention.
 
+## [0.8.4] - 2023-04-04
+
+### Changed
+
+- Invalid datetime preset values will now throw a 406 error for `/preset` routes [#160](https://github.com/datajoint/pharus/pull/160)
+
 ## [0.8.3] - 2023-03-24
 
 ### Changed
@@ -290,6 +296,7 @@ Observes [Semantic Versioning](https://semver.org/spec/v2.0.0.html) standard and
 - Support for DataJoint attribute types: `varchar`, `int`, `float`, `datetime`, `date`, `time`, `decimal`, `uuid`.
 - Check dependency utility to determine child table references.
 
+[0.8.4]: https://github.com/datajoint/pharus/compare/0.8.3...0.8.4
 [0.8.3]: https://github.com/datajoint/pharus/compare/0.8.2...0.8.3
 [0.8.2]: https://github.com/datajoint/pharus/compare/0.8.1...0.8.2
 [0.8.1]: https://github.com/datajoint/pharus/compare/0.8.0...0.8.1
diff --git a/pharus/component_interface.py b/pharus/component_interface.py
index 11a5520..9d46fd7 100644
--- a/pharus/component_interface.py
+++ b/pharus/component_interface.py
@@ -15,6 +15,7 @@
 from uuid import UUID
 import cv2
 import base64
+from dateutil import parser
 
 
 class NumpyEncoder(json.JSONEncoder):
@@ -246,6 +247,9 @@ def __init__(self, *args, **kwargs):
             for sub_m in (m.get("map", []) + [m])
         }
         self.input_lookup = {v: k for k, v in self.destination_lookup.items()}
+        self.datatype_lookup = {
+            k: v[1] for t in self.tables for k, v in t.heading.attributes.items()
+        }
 
         if "presets" in self.component_config:
             lcls = locals()
@@ -351,6 +355,14 @@ def presets_route(self):
         # If you have a name mapping it will be applied to each preset
         # Route will 404 if no preset query is defined and 500 if there is an Exception
 
+        # Helper function to convert datetime strings
+        def convert_datetime_string(datetime_string):
+            try:
+                dt = parser.parse(datetime_string)
+                return dt.strftime("%Y-%m-%d %H:%M:%S")
+            except ValueError:
+                raise ValueError("Invalid datetime string")
+
         # Helper function to filter out fields not in the insert,
         # as well as apply the fields_map
         def filter_preset(preset: dict):
@@ -367,10 +379,13 @@ def filter_preset(preset: dict):
             }
             return {
                 (
-                    self.input_lookup[k.split(".").pop()]
-                    if k.split(".").pop() in self.input_lookup
-                    else k.split(".").pop()
-                ): v
+                    self.input_lookup[a]
+                    if (a := k.split(".").pop()) in self.input_lookup
+                    else a
+                ): convert_datetime_string(v)
+                if a in self.datatype_lookup
+                and re.search(r"^date.*|time.*$", self.datatype_lookup[a])
+                else v
                 for k, v in preset_with_tables_filtered.items()
             }
 
@@ -381,9 +396,16 @@ def filter_preset(preset: dict):
                 {"Content-Type": "text/plain"},
             )
 
-        filtered_preset_dictionary = {
-            k: filter_preset(v) for k, v in self.presets_dict.items()
-        }
+        try:
+            filtered_preset_dictionary = {
+                k: filter_preset(v) for k, v in self.presets_dict.items()
+            }
+        except ValueError as e:
+            return (
+                str(e),
+                406,
+                {"Content-Type": "text/plain"},
+            )
 
         return (
             NumpyEncoder.dumps(filtered_preset_dictionary),
diff --git a/pharus/version.py b/pharus/version.py
index 1c7f0b1..befb8ac 100644
--- a/pharus/version.py
+++ b/pharus/version.py
@@ -1,2 +1,2 @@
 """Package metadata."""
-__version__ = "0.8.3"
+__version__ = "0.8.4"