diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 5dc41343..2af2c8d4 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 2.4.1
+current_version = 2.4.2
 commit = True
 tag = True
 
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index f473b1cc..b67404d0 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,14 +1,20 @@
 
 Changelog
 =========
+2.4.2 (2018-05-21)
+-----------------------------------------
+* Fixed bug in convert_mlt that caused all time inputs to occur
+  at 00:00:00 UT
+* Fixed year of last two updates in changelog
+
 
-2.4.1 (2017-04-04)
+2.4.1 (2018-04-04)
 -----------------------------------------
-* Fix bug in installation, that caused files to be placed in the wrong
+* Fix bug in installation that caused files to be placed in the wrong
   directory
 * Added DOI
 
-2.4.0 (2017-03-21)
+2.4.0 (2018-03-21)
 -----------------------------------------
 
 * Update to use AACGM-v2.4, which includes changes to the inverse MLT and
diff --git a/aacgmv2/__init__.py b/aacgmv2/__init__.py
index 43f72a44..29e170e3 100644
--- a/aacgmv2/__init__.py
+++ b/aacgmv2/__init__.py
@@ -41,7 +41,7 @@
 """
 import os.path as _path
 import logbook as logging
-__version__ = "2.4.1"
+__version__ = "2.4.2"
 
 # path and filename prefix for the IGRF coefficients
 AACGM_V2_DAT_PREFIX = _path.join(_path.realpath(_path.dirname(__file__)),
diff --git a/aacgmv2/tests/test_py_aacgmv2.py b/aacgmv2/tests/test_py_aacgmv2.py
index 0f1a5b0d..2acdba21 100644
--- a/aacgmv2/tests/test_py_aacgmv2.py
+++ b/aacgmv2/tests/test_py_aacgmv2.py
@@ -853,18 +853,32 @@ class TestMLTConvert:
     def setup(self):
         """Runs before every method to create a clean testing setup"""
         self.dtime = dt.datetime(2015, 1, 1, 0, 0, 0)
+        self.dtime2 = dt.datetime(2015, 1, 1, 10, 0, 0)
         self.ddate = dt.date(2015, 1, 1)
         self.mlon_out = None
         self.mlt_out = None
+        self.mlt_diff = None
         self.mlon_list = [270.0, 80.0, -95.0]
         self.mlt_list = [12.0, 25.0, -1.0]
         self.mlon_comp = [-101.657689, 93.34231102, 63.34231102]
         self.mlt_comp = [12.77717927, 0.1105126, 12.44384593]
+        self.diff_comp = np.ones(shape=(3,)) * -10.52411552
 
     def teardown(self):
         """Runs after every method to clean up previous testing"""
         del self.mlon_out, self.mlt_out, self.mlt_list, self.mlon_list
-        del self.mlon_comp, self.mlt_comp
+        del self.mlon_comp, self.mlt_comp, self.mlt_diff, self.diff_comp
+
+    def test_date_input(self):
+        """Test to see that the date input works"""
+        self.mlt_out = aacgmv2.convert_mlt(self.mlon_list, self.ddate,
+                                           m2a=False)
+        np.testing.assert_allclose(self.mlt_out, self.mlt_comp, rtol=1.0e-4)
+
+    def test_datetime_exception(self):
+        """Test to see that a value error is raised with bad time input"""
+        with pytest.raises(ValueError):
+            self.mlt_out = aacgmv2.wrapper.convert_mlt(self.mlon_list, 1997)
 
     def test_inv_convert_mlt_single(self):
         """Test MLT inversion for a single value"""
@@ -924,6 +938,14 @@ def test_mlt_convert_arr(self):
                                            self.dtime, m2a=False)
         np.testing.assert_allclose(self.mlt_out, self.mlt_comp, rtol=1.0e-4)
 
+    def test_mlt_convert_change(self):
+        """Test that MLT changes with UT"""
+        self.mlt_out = aacgmv2.convert_mlt(self.mlon_list, self.dtime)
+        self.mlt_diff = self.mlt_out - aacgmv2.convert_mlt(self.mlon_list,
+                                                           self.dtime2)
+
+        np.testing.assert_allclose(self.mlt_diff, self.diff_comp, rtol=1.0e-4)
+
 class TestCoeffPath:
     def setup(self):
         """Runs before every method to create a clean testing setup"""
diff --git a/aacgmv2/wrapper.py b/aacgmv2/wrapper.py
index 9ed22714..da142812 100644
--- a/aacgmv2/wrapper.py
+++ b/aacgmv2/wrapper.py
@@ -531,10 +531,10 @@ def convert_mlt(arr, dtime, m2a=False, coeff_prefix=None, igrf_file=None):
 
     # Test time
     if isinstance(dtime, dt.date):
-        dtime = dt.datetime.combine(dtime, dt.time(0))
-
-    assert isinstance(dtime, dt.datetime), \
-        logging.error('time must be specified as datetime object')
+        if not isinstance(dtime, dt.datetime):
+            dtime = dt.datetime.combine(dtime, dt.time(0))
+    else:
+        raise ValueError('time must be specified as datetime object')
 
     # Calculate desired location, C routines set date and time
     if m2a:
diff --git a/docs/conf.py b/docs/conf.py
index 0b8bae1c..0215b4b2 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -24,7 +24,7 @@
 year = u'2015'
 author = u'Angeline G. Burrell, Christer van der Meeren'
 copyright = '{0}, {1}'.format(year, author)
-version = release = u'2.4.1'
+version = release = u'2.4.2'
 # on_rtd is whether we are on readthedocs.org
 on_rtd = os.environ.get('READTHEDOCS', None) == 'True'
 
diff --git a/setup.py b/setup.py
index 5d9d5974..002df7fd 100644
--- a/setup.py
+++ b/setup.py
@@ -24,7 +24,7 @@ def read(fname, **kwargs):
 
 setup(
     name='aacgmv2',
-    version='2.4.1',
+    version='2.4.2',
     license='MIT',
     description='A Python wrapper for AACGM-v2 magnetic coordinates',
     long_description='%s\n%s' % (read('README.rst'),
@@ -49,7 +49,6 @@ def read(fname, **kwargs):
         'Programming Language :: Python',
         'Programming Language :: Python :: 2.7',
         'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.3',
         'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',