Use UTC() everywhere

ref - https://github.com/golang/go/issues/1988, no standard function to set timeZone

pkg/storage/donut/donut_bucket.go

@@ -54,11 +54,12 @@ func NewBucket(bucketName, aclType, donutName string, nodes map[string]Node) (Bu
 	}
 	bucketMetadata := make(map[string]string)
 	bucketMetadata["acl"] = aclType
-	bucketMetadata["created"] = time.Now().Format(time.RFC3339Nano)
+	t := time.Now().UTC()
+	bucketMetadata["created"] = t.Format(time.RFC3339Nano)
 	b := bucket{}
 	b.name = bucketName
 	b.acl = aclType
-	b.time = time.Now()
+	b.time = t
 	b.donutName = donutName
 	b.objects = make(map[string]Object)
 	b.nodes = nodes
@@ -188,7 +189,7 @@ func (b bucket) PutObject(objectName string, objectData io.Reader, expectedMD5Su
 		objectMetadata[k] = v
 	}
 	dataMd5sum := summer.Sum(nil)
-	objectMetadata["created"] = time.Now().Format(time.RFC3339Nano)
+	objectMetadata["created"] = time.Now().UTC().Format(time.RFC3339Nano)
 
 	// keeping md5sum for the object in two different places
 	// one for object storage and another is for internal use

pkg/storage/drivers/donut/donut.go

@@ -136,7 +136,7 @@ func (d donutDriver) ListBuckets() (results []drivers.BucketMetadata, err error)
 		result := drivers.BucketMetadata{
 			Name: name,
 			// TODO Add real created date
-			Created: time.Now(),
+			Created: time.Now().UTC(),
 		}
 		results = append(results, result)
 	}

pkg/storage/drivers/memory/memory.go

@@ -277,7 +277,7 @@ func (memory *memoryDriver) createObject(bucket, key, contentType, expectedMD5Su
 		Key:    key,
 
 		ContentType: contentType,
-		Created:     time.Now(),
+		Created:     time.Now().UTC(),
 		Md5:         md5Sum,
 		Size:        int64(totalLength),
 	}
@@ -328,7 +328,7 @@ func (memory *memoryDriver) CreateBucket(bucketName, acl string) error {
 	newBucket.objectMetadata = make(map[string]drivers.ObjectMetadata)
 	newBucket.bucketMetadata = drivers.BucketMetadata{}
 	newBucket.bucketMetadata.Name = bucketName
-	newBucket.bucketMetadata.Created = time.Now()
+	newBucket.bucketMetadata.Created = time.Now().UTC()
 	newBucket.bucketMetadata.ACL = drivers.BucketACL(acl)
 	memory.lock.Lock()
 	defer memory.lock.Unlock()
@@ -522,5 +522,5 @@ func (memory *memoryDriver) expireLRUObjects() {
 func (memory *memoryDriver) updateAccessTime(key string) {
 	memory.lock.Lock()
 	defer memory.lock.Unlock()
-	memory.lastAccessedObjects[key] = time.Now()
+	memory.lastAccessedObjects[key] = time.Now().UTC()
 }