From 20fd738c856dfa21a0d2d251b92459d6641c782c Mon Sep 17 00:00:00 2001
From: Tom Christie <tom@tomchristie.com>
Date: Wed, 20 Mar 2013 13:05:59 +0000
Subject: [PATCH] iso formated datetime aware fields with +0000 offset should
 use 'Z' suffix instead

---
 rest_framework/fields.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/rest_framework/fields.py b/rest_framework/fields.py
index 4b6931ad4..a0f52f506 100644
--- a/rest_framework/fields.py
+++ b/rest_framework/fields.py
@@ -609,7 +609,10 @@ class DateTimeField(WritableField):
             return None
 
         if self.format.lower() == ISO_8601:
-            return value.isoformat()
+            ret = value.isoformat()
+            if ret.endswith('+00:00'):
+                ret = ret[:-6] + 'Z'
+            return ret
         return value.strftime(self.format)