diff --git a/CHANGELOG.md b/CHANGELOG.md
index cf07a8d..a7ff391 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,25 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 
+## [1.2.1] - 2024-22-05
+
+### Added
+
+- Super basic unittests for `instant_to_datetime` and `timestamp_to_datetime` 
+  cause there was a super dumb error which those would have caught 
+
+
+### Changed
+
+- The unittest for `any_to_datetime` to account for "instant"
+
+
+### Fixed
+
+- The `any_to_datetime` call where it's accidentally casting "instants" to 
+  "timestamps"
+
+
 ## [1.2.0] - 2024-22-05
 
 ### Added
@@ -15,14 +34,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   UNIX Epoch as a float) that work even on Windows when the built in 
   `datetime.timestamp()` and `datetime.fromtimestamp()` methods fail for 
   negative values and more
-- Methods for casting between Datetime and "instance" (number of milliseconds 
+- Methods for casting between Datetime and "instant" (number of milliseconds 
   since UNIX Epoch as an int)
 
 
 ### Changed
 
 - How `any_to_datetime` handles "ambiguous" numeric values when deciding between
-  "timestamp", "instance" and "filetime"
+  "timestamp", "instant" and "filetime"
 - How `any_to_datetime` handles strings such that if a given string is a simple 
   int or float, it's cast and treated as such
 
diff --git a/ccptools/__init__.py b/ccptools/__init__.py
index 3d201c6..c406d3b 100644
--- a/ccptools/__init__.py
+++ b/ccptools/__init__.py
@@ -1,4 +1,4 @@
-__version__ = '1.2.0'
+__version__ = '1.2.1'
 
 __author__ = 'Thordur Matthiasson <thordurm@ccpgames.com>'
 __license__ = 'MIT License'
diff --git a/ccptools/dtu/casting/_any.py b/ccptools/dtu/casting/_any.py
index 91893a0..5ba8ecd 100644
--- a/ccptools/dtu/casting/_any.py
+++ b/ccptools/dtu/casting/_any.py
@@ -90,7 +90,7 @@ def any_to_datetime(temporal_object: T_TEMPORAL_VALUE,
                 # This range means that the number, if treated as an instant,
                 # represents a datetime within 1000 years to/from now so it's the
                 # second most likely bet!
-                return timestamp_to_datetime(temporal_object)
+                return instant_to_datetime(temporal_object)
 
             # This number is so large that it's most likely a filetime!
             return filetime_to_datetime(temporal_object)
diff --git a/tests/datetimeutils/test_datetimeutils.py b/tests/datetimeutils/test_datetimeutils.py
index 5cdba79..553dda4 100644
--- a/tests/datetimeutils/test_datetimeutils.py
+++ b/tests/datetimeutils/test_datetimeutils.py
@@ -20,6 +20,7 @@ def assertDefault(value):
         assertSame(119445914047564820, (1979, 7, 6, 14, 3, 24, 756482))
         assertSame(300117804, (1979, 7, 6, 14, 3, 24))
         assertSame(300117804.321321, (1979, 7, 6, 14, 3, 24, 321321))
+        assertSame(300117804321.321, (1979, 7, 6, 14, 3, 24, 321321))
         assertSame(1570875489.134, (2019, 10, 12, 10, 18, 9, 134000))
 
         assertSame(None, None)
diff --git a/tests/datetimeutils/test_instant.py b/tests/datetimeutils/test_instant.py
index d45047b..eef2c6a 100644
--- a/tests/datetimeutils/test_instant.py
+++ b/tests/datetimeutils/test_instant.py
@@ -3,7 +3,17 @@
 from ccptools.dtu.casting import *
 
 
+def _millisec_resolution(dt: Datetime) -> Datetime:
+    return dt.replace(microsecond=int(dt.microsecond / 1000.)*1000)
+
+
 class TestInstant(unittest.TestCase):
     def test_instant_to_datetime(self):
         _dt = Datetime(2024, 5, 22, 10, 37, 54, 123000)
-        self.assertEqual(_dt, instant_to_datetime(1716374274123))
+        self.assertEqual(_dt, _millisec_resolution(instant_to_datetime(1716374274123)))
+
+        _dt = Datetime(1024, 5, 22, 10, 37, 54, 987000)
+        self.assertEqual(_dt, _millisec_resolution(instant_to_datetime(-29840620925013)))
+
+        _dt = Datetime(3024, 5, 22, 10, 37, 54, 123000)
+        self.assertEqual(_dt, _millisec_resolution(instant_to_datetime(33273283074123)))
diff --git a/tests/datetimeutils/test_timestamp.py b/tests/datetimeutils/test_timestamp.py
new file mode 100644
index 0000000..55ee28f
--- /dev/null
+++ b/tests/datetimeutils/test_timestamp.py
@@ -0,0 +1,19 @@
+import unittest
+from ccptools.dtu.structs import *
+from ccptools.dtu.casting import *
+
+
+def _10_microsec_resolution(dt: Datetime) -> Datetime:
+    return dt.replace(microsecond=int(dt.microsecond / 10.)*10)
+
+
+class TestInstant(unittest.TestCase):
+    def test_instant_to_datetime(self):
+        _dt = Datetime(2024, 5, 22, 10, 37, 54, 123456)
+        self.assertEqual(_10_microsec_resolution(_dt), _10_microsec_resolution(timestamp_to_datetime(1716374274.123456)))
+
+        _dt = Datetime(1024, 5, 22, 10, 37, 54, 987654)
+        self.assertEqual(_10_microsec_resolution(_dt), _10_microsec_resolution(timestamp_to_datetime(-29840620925.012344)))
+
+        _dt = Datetime(3024, 5, 22, 10, 37, 54, 123456)
+        self.assertEqual(_10_microsec_resolution(_dt), _10_microsec_resolution(timestamp_to_datetime(33273283074.123456)))