diff --git a/.gitignore b/.gitignore
index c6f210e..57d7aba 100644
--- a/.gitignore
+++ b/.gitignore
@@ -56,3 +56,4 @@ ENV/
 .pydevproject
 .settings/
 
+*~
diff --git a/zoomus/__init__.py b/zoomus/__init__.py
index 8a1765f..8967d5e 100644
--- a/zoomus/__init__.py
+++ b/zoomus/__init__.py
@@ -7,4 +7,4 @@
 
 
 __all__ = ["API_VERSION_1", "API_VERSION_2", "ZoomClient"]
-__version__ = "1.2.1"
+__version__ = "1.2.2"
diff --git a/zoomus/components/meeting.py b/zoomus/components/meeting.py
index abbe3ee..f96c0fd 100644
--- a/zoomus/components/meeting.py
+++ b/zoomus/components/meeting.py
@@ -2,6 +2,8 @@
 
 from __future__ import absolute_import
 
+import datetime
+
 from zoomus import util
 from zoomus.components import base
 
@@ -11,19 +13,19 @@ class MeetingComponent(base.BaseComponent):
 
     def list(self, **kwargs):
         util.require_keys(kwargs, "host_id")
-        if kwargs.get("start_time"):
+        if isinstance(kwargs.get("start_time"), (datetime.date, datetime.datetime)):
             kwargs["start_time"] = util.date_to_str(kwargs["start_time"])
         return self.post_request("/meeting/list", params=kwargs)
 
     def create(self, **kwargs):
         util.require_keys(kwargs, ["host_id", "topic", "type"])
-        if kwargs.get("start_time"):
+        if isinstance(kwargs.get("start_time"), (datetime.date, datetime.datetime)):
             kwargs["start_time"] = util.date_to_str(kwargs["start_time"])
         return self.post_request("/meeting/create", params=kwargs)
 
     def update(self, **kwargs):
         util.require_keys(kwargs, ["id", "host_id"])
-        if kwargs.get("start_time"):
+        if isinstance(kwargs.get("start_time"), (datetime.date, datetime.datetime)):
             kwargs["start_time"] = util.date_to_str(kwargs["start_time"])
         return self.post_request("/meeting/update", params=kwargs)
 
@@ -49,7 +51,7 @@ def list(self, **kwargs):
 
     def create(self, **kwargs):
         util.require_keys(kwargs, "user_id")
-        if kwargs.get("start_time"):
+        if isinstance(kwargs.get("start_time"), (datetime.date, datetime.datetime)):
             kwargs["start_time"] = util.date_to_str(kwargs["start_time"])
         return self.post_request(
             "/users/{}/meetings".format(kwargs.get("user_id")), data=kwargs
@@ -61,7 +63,7 @@ def get(self, **kwargs):
 
     def update(self, **kwargs):
         util.require_keys(kwargs, "id")
-        if kwargs.get("start_time"):
+        if isinstance(kwargs.get("start_time"), (datetime.date, datetime.datetime)):
             kwargs["start_time"] = util.date_to_str(kwargs["start_time"])
         return self.patch_request("/meetings/{}".format(kwargs.get("id")), data=kwargs)