From 10eaddd0d4f27e01c26b6f336a6d19d4a602da14 Mon Sep 17 00:00:00 2001
From: Tres Seaver <tseaver@palladion.com>
Date: Wed, 29 Jul 2015 17:16:12 -0400
Subject: [PATCH] Compute epoch using same formula as in datastore.

Addresses:
https://github.com/GoogleCloudPlatform/gcloud-python/pull/1021#discussion_r35710351
---
 gcloud/bigquery/_helpers.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcloud/bigquery/_helpers.py b/gcloud/bigquery/_helpers.py
index 36e2c3d1e384..b19ffd3a2742 100644
--- a/gcloud/bigquery/_helpers.py
+++ b/gcloud/bigquery/_helpers.py
@@ -20,7 +20,7 @@
 
 import pytz
 
-_EPOCH = datetime.datetime(1970, 1, 1, tzinfo=pytz.utc)
+_EPOCH = datetime.datetime.utcfromtimestamp(0).replace(tzinfo=pytz.utc)
 
 
 def _millis(when):