diff --git a/openstack/orchestration/v1/stacks/fixtures.go b/openstack/orchestration/v1/stacks/fixtures.go
index 49e4168..f1d66f4 100644
--- a/openstack/orchestration/v1/stacks/fixtures.go
+++ b/openstack/orchestration/v1/stacks/fixtures.go
@@ -60,7 +60,7 @@
 		},
 		StatusReason: "Stack CREATE completed successfully",
 		Name:         "postman_stack",
-		CreationTime: time.Date(2015, 2, 3, 20, 7, 39, 0, time.UTC),
+		CreationTime: gophercloud.JSONRFC3339NoZ(time.Date(2015, 2, 3, 20, 7, 39, 0, time.UTC)),
 		Status:       "CREATE_COMPLETE",
 		ID:           "16ef0584-4458-41eb-87c8-0dc8d5f66c87",
 		Tags:         []string{"rackspace", "atx"},
@@ -75,8 +75,8 @@
 		},
 		StatusReason: "Stack successfully updated",
 		Name:         "gophercloud-test-stack-2",
-		CreationTime: time.Date(2014, 12, 11, 17, 39, 16, 0, time.UTC),
-		UpdatedTime:  time.Date(2014, 12, 11, 17, 40, 37, 0, time.UTC),
+		CreationTime: gophercloud.JSONRFC3339NoZ(time.Date(2014, 12, 11, 17, 39, 16, 0, time.UTC)),
+		UpdatedTime:  gophercloud.JSONRFC3339NoZ(time.Date(2014, 12, 11, 17, 40, 37, 0, time.UTC)),
 		Status:       "UPDATE_COMPLETE",
 		ID:           "db6977b2-27aa-4775-9ae7-6213212d4ada",
 		Tags:         []string{"sfo", "satx"},
@@ -157,7 +157,7 @@
 	StatusReason: "Stack CREATE completed successfully",
 	Name:         "postman_stack",
 	Outputs:      []map[string]interface{}{},
-	CreationTime: time.Date(2015, 2, 3, 20, 7, 39, 0, time.UTC),
+	CreationTime: gophercloud.JSONRFC3339NoZ(time.Date(2015, 2, 3, 20, 7, 39, 0, time.UTC)),
 	Links: []gophercloud.Link{
 		gophercloud.Link{
 			Href: "http://166.76.160.117:8004/v1/98606384f58d4ad0b3db7d0d779549ac/stacks/postman_stack/16ef0584-4458-41eb-87c8-0dc8d5f66c87",
@@ -255,7 +255,7 @@
 		"OS::stack_id":   "16ef0584-4458-41eb-87c8-0dc8d5f66c87",
 	},
 	Name:         "postman_stack",
-	CreationTime: time.Date(2015, 2, 3, 20, 7, 39, 0, time.UTC),
+	CreationTime: gophercloud.JSONRFC3339NoZ(time.Date(2015, 2, 3, 20, 7, 39, 0, time.UTC)),
 	Links: []gophercloud.Link{
 		gophercloud.Link{
 			Href: "http://166.76.160.117:8004/v1/98606384f58d4ad0b3db7d0d779549ac/stacks/postman_stack/16ef0584-4458-41eb-87c8-0dc8d5f66c87",
diff --git a/openstack/orchestration/v1/stacks/results.go b/openstack/orchestration/v1/stacks/results.go
index 72855ff..5da178e 100644
--- a/openstack/orchestration/v1/stacks/results.go
+++ b/openstack/orchestration/v1/stacks/results.go
@@ -2,19 +2,15 @@
 
 import (
 	"encoding/json"
-	"fmt"
-	"reflect"
-	"time"
 
-	"github.com/mitchellh/mapstructure"
 	"github.com/gophercloud/gophercloud"
 	"github.com/gophercloud/gophercloud/pagination"
 )
 
 // CreatedStack represents the object extracted from a Create operation.
 type CreatedStack struct {
-	ID    string             `mapstructure:"id"`
-	Links []gophercloud.Link `mapstructure:"links"`
+	ID    string             `json:"id"`
+	Links []gophercloud.Link `json:"links"`
 }
 
 // CreateResult represents the result of a Create operation.
@@ -25,19 +21,11 @@
 // Extract returns a pointer to a CreatedStack object and is called after a
 // Create operation.
 func (r CreateResult) Extract() (*CreatedStack, error) {
-	if r.Err != nil {
-		return nil, r.Err
+	var s struct {
+		CreatedStack *CreatedStack `json:"stack"`
 	}
-
-	var res struct {
-		Stack *CreatedStack `mapstructure:"stack"`
-	}
-
-	if err := mapstructure.Decode(r.Body, &res); err != nil {
-		return nil, err
-	}
-
-	return res.Stack, nil
+	err := r.ExtractInto(&s)
+	return s.CreatedStack, err
 }
 
 // AdoptResult represents the result of an Adopt operation. AdoptResult has the
@@ -54,90 +42,50 @@
 // IsEmpty returns true if a ListResult contains no Stacks.
 func (r StackPage) IsEmpty() (bool, error) {
 	stacks, err := ExtractStacks(r)
-	if err != nil {
-		return true, err
-	}
-	return len(stacks) == 0, nil
+	return len(stacks) == 0, err
 }
 
 // ListedStack represents an element in the slice extracted from a List operation.
 type ListedStack struct {
-	CreationTime time.Time          `mapstructure:"-"`
-	Description  string             `mapstructure:"description"`
-	ID           string             `mapstructure:"id"`
-	Links        []gophercloud.Link `mapstructure:"links"`
-	Name         string             `mapstructure:"stack_name"`
-	Status       string             `mapstructure:"stack_status"`
-	StatusReason string             `mapstructure:"stack_status_reason"`
-	Tags         []string           `mapstructure:"tags"`
-	UpdatedTime  time.Time          `mapstructure:"-"`
+	CreationTime gophercloud.JSONRFC3339NoZ `json:"creation_time"`
+	Description  string                     `json:"description"`
+	ID           string                     `json:"id"`
+	Links        []gophercloud.Link         `json:"links"`
+	Name         string                     `json:"stack_name"`
+	Status       string                     `json:"stack_status"`
+	StatusReason string                     `json:"stack_status_reason"`
+	Tags         []string                   `json:"tags"`
+	UpdatedTime  gophercloud.JSONRFC3339NoZ `json:"updated_time"`
 }
 
 // ExtractStacks extracts and returns a slice of ListedStack. It is used while iterating
 // over a stacks.List call.
-func ExtractStacks(page pagination.Page) ([]ListedStack, error) {
-	casted := page.(StackPage).Body
-
-	var res struct {
-		Stacks []ListedStack `mapstructure:"stacks"`
+func ExtractStacks(r pagination.Page) ([]ListedStack, error) {
+	var s struct {
+		ListedStacks []ListedStack `json:"stacks"`
 	}
-
-	err := mapstructure.Decode(casted, &res)
-	if err != nil {
-		return nil, err
-	}
-
-	var rawStacks []interface{}
-	switch casted.(type) {
-	case map[string]interface{}:
-		rawStacks = casted.(map[string]interface{})["stacks"].([]interface{})
-	case map[string][]interface{}:
-		rawStacks = casted.(map[string][]interface{})["stacks"]
-	default:
-		return res.Stacks, fmt.Errorf("Unknown type: %v", reflect.TypeOf(casted))
-	}
-
-	for i := range rawStacks {
-		thisStack := (rawStacks[i]).(map[string]interface{})
-
-		if t, ok := thisStack["creation_time"].(string); ok && t != "" {
-			creationTime, err := time.Parse(gophercloud.StackFmtTime, t)
-			if err != nil {
-				return res.Stacks, err
-			}
-			res.Stacks[i].CreationTime = creationTime
-		}
-
-		if t, ok := thisStack["updated_time"].(string); ok && t != "" {
-			updatedTime, err := time.Parse(gophercloud.StackFmtTime, t)
-			if err != nil {
-				return res.Stacks, err
-			}
-			res.Stacks[i].UpdatedTime = updatedTime
-		}
-	}
-
-	return res.Stacks, nil
+	err := (r.(StackPage)).ExtractInto(&s)
+	return s.ListedStacks, err
 }
 
 // RetrievedStack represents the object extracted from a Get operation.
 type RetrievedStack struct {
-	Capabilities        []interface{}            `mapstructure:"capabilities"`
-	CreationTime        time.Time                `mapstructure:"-"`
-	Description         string                   `mapstructure:"description"`
-	DisableRollback     bool                     `mapstructure:"disable_rollback"`
-	ID                  string                   `mapstructure:"id"`
-	Links               []gophercloud.Link       `mapstructure:"links"`
-	NotificationTopics  []interface{}            `mapstructure:"notification_topics"`
-	Outputs             []map[string]interface{} `mapstructure:"outputs"`
-	Parameters          map[string]string        `mapstructure:"parameters"`
-	Name                string                   `mapstructure:"stack_name"`
-	Status              string                   `mapstructure:"stack_status"`
-	StatusReason        string                   `mapstructure:"stack_status_reason"`
-	Tags                []string                 `mapstructure:"tags"`
-	TemplateDescription string                   `mapstructure:"template_description"`
-	Timeout             int                      `mapstructure:"timeout_mins"`
-	UpdatedTime         time.Time                `mapstructure:"-"`
+	Capabilities        []interface{}              `json:"capabilities"`
+	CreationTime        gophercloud.JSONRFC3339NoZ `json:"creation_time"`
+	Description         string                     `json:"description"`
+	DisableRollback     bool                       `json:"disable_rollback"`
+	ID                  string                     `json:"id"`
+	Links               []gophercloud.Link         `json:"links"`
+	NotificationTopics  []interface{}              `json:"notification_topics"`
+	Outputs             []map[string]interface{}   `json:"outputs"`
+	Parameters          map[string]string          `json:"parameters"`
+	Name                string                     `json:"stack_name"`
+	Status              string                     `json:"stack_status"`
+	StatusReason        string                     `json:"stack_status_reason"`
+	Tags                []string                   `json:"tags"`
+	TemplateDescription string                     `json:"template_description"`
+	Timeout             int                        `json:"timeout_mins"`
+	UpdatedTime         gophercloud.JSONRFC3339NoZ `json:"updated_time"`
 }
 
 // GetResult represents the result of a Get operation.
@@ -148,46 +96,11 @@
 // Extract returns a pointer to a RetrievedStack object and is called after a
 // Get operation.
 func (r GetResult) Extract() (*RetrievedStack, error) {
-	if r.Err != nil {
-		return nil, r.Err
+	var s struct {
+		Stack *RetrievedStack `json:"stack"`
 	}
-
-	var res struct {
-		Stack *RetrievedStack `mapstructure:"stack"`
-	}
-
-	config := &mapstructure.DecoderConfig{
-		Result:           &res,
-		WeaklyTypedInput: true,
-	}
-	decoder, err := mapstructure.NewDecoder(config)
-	if err != nil {
-		return nil, err
-	}
-
-	if err := decoder.Decode(r.Body); err != nil {
-		return nil, err
-	}
-
-	b := r.Body.(map[string]interface{})["stack"].(map[string]interface{})
-
-	if date, ok := b["creation_time"]; ok && date != nil {
-		t, err := time.Parse(gophercloud.StackFmtTime, date.(string))
-		if err != nil {
-			return nil, err
-		}
-		res.Stack.CreationTime = t
-	}
-
-	if date, ok := b["updated_time"]; ok && date != nil {
-		t, err := time.Parse(gophercloud.StackFmtTime, date.(string))
-		if err != nil {
-			return nil, err
-		}
-		res.Stack.UpdatedTime = t
-	}
-
-	return res.Stack, err
+	err := r.ExtractInto(&s)
+	return s.Stack, err
 }
 
 // UpdateResult represents the result of a Update operation.
@@ -202,19 +115,19 @@
 
 // PreviewedStack represents the result of a Preview operation.
 type PreviewedStack struct {
-	Capabilities        []interface{}      `mapstructure:"capabilities"`
-	CreationTime        time.Time          `mapstructure:"-"`
-	Description         string             `mapstructure:"description"`
-	DisableRollback     bool               `mapstructure:"disable_rollback"`
-	ID                  string             `mapstructure:"id"`
-	Links               []gophercloud.Link `mapstructure:"links"`
-	Name                string             `mapstructure:"stack_name"`
-	NotificationTopics  []interface{}      `mapstructure:"notification_topics"`
-	Parameters          map[string]string  `mapstructure:"parameters"`
-	Resources           []interface{}      `mapstructure:"resources"`
-	TemplateDescription string             `mapstructure:"template_description"`
-	Timeout             int                `mapstructure:"timeout_mins"`
-	UpdatedTime         time.Time          `mapstructure:"-"`
+	Capabilities        []interface{}              `json:"capabilities"`
+	CreationTime        gophercloud.JSONRFC3339NoZ `json:"creation_time"`
+	Description         string                     `json:"description"`
+	DisableRollback     bool                       `json:"disable_rollback"`
+	ID                  string                     `json:"id"`
+	Links               []gophercloud.Link         `json:"links"`
+	Name                string                     `json:"stack_name"`
+	NotificationTopics  []interface{}              `json:"notification_topics"`
+	Parameters          map[string]string          `json:"parameters"`
+	Resources           []interface{}              `json:"resources"`
+	TemplateDescription string                     `json:"template_description"`
+	Timeout             int                        `json:"timeout_mins"`
+	UpdatedTime         gophercloud.JSONRFC3339NoZ `json:"updated_time"`
 }
 
 // PreviewResult represents the result of a Preview operation.
@@ -225,60 +138,25 @@
 // Extract returns a pointer to a PreviewedStack object and is called after a
 // Preview operation.
 func (r PreviewResult) Extract() (*PreviewedStack, error) {
-	if r.Err != nil {
-		return nil, r.Err
+	var s struct {
+		PreviewedStack *PreviewedStack `json:"stack"`
 	}
-
-	var res struct {
-		Stack *PreviewedStack `mapstructure:"stack"`
-	}
-
-	config := &mapstructure.DecoderConfig{
-		Result:           &res,
-		WeaklyTypedInput: true,
-	}
-	decoder, err := mapstructure.NewDecoder(config)
-	if err != nil {
-		return nil, err
-	}
-
-	if err := decoder.Decode(r.Body); err != nil {
-		return nil, err
-	}
-
-	b := r.Body.(map[string]interface{})["stack"].(map[string]interface{})
-
-	if date, ok := b["creation_time"]; ok && date != nil {
-		t, err := time.Parse(gophercloud.StackFmtTime, date.(string))
-		if err != nil {
-			return nil, err
-		}
-		res.Stack.CreationTime = t
-	}
-
-	if date, ok := b["updated_time"]; ok && date != nil {
-		t, err := time.Parse(gophercloud.StackFmtTime, date.(string))
-		if err != nil {
-			return nil, err
-		}
-		res.Stack.UpdatedTime = t
-	}
-
-	return res.Stack, err
+	err := r.ExtractInto(&s)
+	return s.PreviewedStack, err
 }
 
 // AbandonedStack represents the result of an Abandon operation.
 type AbandonedStack struct {
-	Status             string                 `mapstructure:"status"`
-	Name               string                 `mapstructure:"name"`
-	Template           map[string]interface{} `mapstructure:"template"`
-	Action             string                 `mapstructure:"action"`
-	ID                 string                 `mapstructure:"id"`
-	Resources          map[string]interface{} `mapstructure:"resources"`
-	Files              map[string]string      `mapstructure:"files"`
-	StackUserProjectID string                 `mapstructure:"stack_user_project_id"`
-	ProjectID          string                 `mapstructure:"project_id"`
-	Environment        map[string]interface{} `mapstructure:"environment"`
+	Status             string                 `json:"status"`
+	Name               string                 `json:"name"`
+	Template           map[string]interface{} `json:"template"`
+	Action             string                 `json:"action"`
+	ID                 string                 `json:"id"`
+	Resources          map[string]interface{} `json:"resources"`
+	Files              map[string]string      `json:"files"`
+	StackUserProjectID string                 `json:"stack_user_project_id"`
+	ProjectID          string                 `json:"project_id"`
+	Environment        map[string]interface{} `json:"environment"`
 }
 
 // AbandonResult represents the result of an Abandon operation.
@@ -289,17 +167,9 @@
 // Extract returns a pointer to an AbandonedStack object and is called after an
 // Abandon operation.
 func (r AbandonResult) Extract() (*AbandonedStack, error) {
-	if r.Err != nil {
-		return nil, r.Err
-	}
-
-	var res AbandonedStack
-
-	if err := mapstructure.Decode(r.Body, &res); err != nil {
-		return nil, err
-	}
-
-	return &res, nil
+	var s *AbandonedStack
+	err := r.ExtractInto(&s)
+	return s, err
 }
 
 // String converts an AbandonResult to a string. This is useful to when passing