diff --git a/glance/common/timeutils.py b/glance/common/timeutils.py
index 090233b25a..f41338927e 100644
--- a/glance/common/timeutils.py
+++ b/glance/common/timeutils.py
@@ -17,8 +17,6 @@
 Time related utilities and helper functions.
 """
 
-import datetime
-
 from oslo_utils import timeutils
 
 # ISO 8601 extended time format with microseconds
@@ -38,9 +36,3 @@ def isotime(at=None, subsecond=False):
     # Need to handle either iso8601 or python UTC format
     st += ('Z' if tz in ['UTC', 'UTC+00:00'] else tz)
     return st
-
-
-def iso8601_from_timestamp(timestamp, microsecond=False):
-    """Returns an iso8601 formatted date from timestamp."""
-    return isotime(datetime.datetime.fromtimestamp(
-        timestamp, tz=datetime.timezone.utc).replace(tzinfo=None), microsecond)
diff --git a/glance/tests/unit/common/test_timeutils.py b/glance/tests/unit/common/test_timeutils.py
index 4d39aaabdb..92bfd1874e 100644
--- a/glance/tests/unit/common/test_timeutils.py
+++ b/glance/tests/unit/common/test_timeutils.py
@@ -13,12 +13,9 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import calendar
 import datetime
 from unittest import mock
 
-from oslo_utils import timeutils as oslo_timeutils
-
 from glance.common import timeutils
 from glance.tests import utils as test_utils
 
@@ -49,9 +46,3 @@ class TimeUtilsTest(test_utils.BaseTestCase):
             utcnow_mock.return_value = self.skynet_self_aware_ms_time
             dt = timeutils.isotime(subsecond=True)
             self.assertEqual(dt, self.skynet_self_aware_time_ms_str)
-
-    def test_iso8601_from_timestamp(self):
-        utcnow = oslo_timeutils.utcnow()
-        iso = timeutils.isotime(utcnow)
-        ts = calendar.timegm(utcnow.timetuple())
-        self.assertEqual(iso, timeutils.iso8601_from_timestamp(ts))