diff --git a/s3/s3i_test.go b/s3/s3i_test.go
index 2cb95b3..96788d1 100644
--- a/s3/s3i_test.go
+++ b/s3/s3i_test.go
@@ -103,7 +103,7 @@ func testBucket(s *s3.S3) *s3.Bucket {
                key,
                // Add in the time element to help isolate tests from one
                // another.
-               time.Now().Format("20060102T150405.999999999Z0700"),
+               time.Now().Format("20060102T150405.999999999"),
        )))
        if err != nil {
                panic(err)