diff --git a/command/login.go b/command/login.go
index 194bbb9..ed34438 100644
--- a/command/login.go
+++ b/command/login.go
@@ -161,6 +161,7 @@ logged in system. non-production server to login to (values are 'pre',
 		enumflag.New(&selectedRelease, "release", ScratchReleaseIds, enumflag.EnumCaseInsensitive),
 		"release",
 		"Salesforce release for scratch org: preview (next release) or previous")
+	scratchCmd.Flags().Int("duration", 7, "number of days before the scratch org expires (1-30)")
 
 	loginCmd.AddCommand(scratchCmd)
 	RootCmd.AddCommand(loginCmd)
@@ -219,7 +220,8 @@ Examples:
   force login scratch --product communities
   force login scratch --product healthcloud
   force login scratch --release preview
-  force login scratch --release previous`,
+  force login scratch --release previous
+  force login scratch --duration 14`,
 	Run: func(cmd *cobra.Command, args []string) {
 		scratchUser, _ := cmd.Flags().GetString("username")
 		scratchNamespace, _ := cmd.Flags().GetString("namespace")
@@ -228,7 +230,8 @@ Examples:
 		edition := ScratchEditionIds[selectedEdition][0]
 		allSettings := expandProductsToSettings(selectedProducts, selectedSettings)
 		release := ScratchReleaseIds[selectedRelease][0]
-		scratchLogin(scratchUser, allFeatures, edition, allSettings, scratchNamespace, release)
+		duration, _ := cmd.Flags().GetInt("duration")
+		scratchLogin(scratchUser, allFeatures, edition, allSettings, scratchNamespace, release, duration)
 	},
 }
 
@@ -355,8 +358,8 @@ func expandProductsToSettings(products []ScratchProduct, settings []ScratchSetti
 	return uniqueSettings
 }
 
-func scratchLogin(scratchUser string, features []string, edition string, settings []string, namespace string, release string) {
-	_, err := ForceScratchCreateLoginAndSaveWithRelease(scratchUser, features, edition, settings, namespace, release, os.Stderr)
+func scratchLogin(scratchUser string, features []string, edition string, settings []string, namespace string, release string, duration int) {
+	_, err := ForceScratchCreateLoginAndSaveWithDuration(scratchUser, features, edition, settings, namespace, release, duration, os.Stderr)
 	if err != nil {
 		ErrorAndExit(err.Error())
 	}
diff --git a/lib/auth.go b/lib/auth.go
index e1f97c7..0c28411 100644
--- a/lib/auth.go
+++ b/lib/auth.go
@@ -139,13 +139,17 @@ func ForceScratchCreateLoginAndSaveWithNamespace(scratchUser string, features []
 }
 
 func ForceScratchCreateLoginAndSaveWithRelease(scratchUser string, features []string, edition string, settings []string, namespace string, release string, output *os.File) (username string, err error) {
+	return ForceScratchCreateLoginAndSaveWithDuration(scratchUser, features, edition, settings, namespace, release, 7, output)
+}
+
+func ForceScratchCreateLoginAndSaveWithDuration(scratchUser string, features []string, edition string, settings []string, namespace string, release string, duration int, output *os.File) (username string, err error) {
 	force, err := ActiveForce()
 	if err != nil {
 		err = errors.New("You must be logged into a Dev Hub org to authenticate as a scratch org user.")
 		return
 	}
 	fmt.Fprintln(os.Stderr, "Creating new Scratch Org...")
-	scratchOrgId, err := force.CreateScratchOrgWithRelease(scratchUser, features, edition, settings, namespace, release)
+	scratchOrgId, err := force.CreateScratchOrgWithDuration(scratchUser, features, edition, settings, namespace, release, duration)
 	if err != nil {
 		return
 	}
diff --git a/lib/scratch.go b/lib/scratch.go
index 1ee44a8..3acc1d0 100644
--- a/lib/scratch.go
+++ b/lib/scratch.go
@@ -281,10 +281,15 @@ func (f *Force) CreateScratchOrgWithUserFeaturesEditionSettingsAndNamespace(user
 }
 
 func (f *Force) CreateScratchOrgWithRelease(username string, features []string, edition string, settings []string, namespace string, release string) (id string, err error) {
+	return f.CreateScratchOrgWithDuration(username, features, edition, settings, namespace, release, 7)
+}
+
+func (f *Force) CreateScratchOrgWithDuration(username string, features []string, edition string, settings []string, namespace string, release string, duration int) (id string, err error) {
 	params := make(map[string]string)
 	params["ConnectedAppCallbackUrl"] = "http://localhost:1717/OauthRedirect"
 	params["ConnectedAppConsumerKey"] = "PlatformCLI"
 	params["Country"] = "US"
+	params["DurationDays"] = fmt.Sprintf("%d", duration)
 
 	if edition != "" {
 		params["Edition"] = edition
diff --git a/lib/scratch_test.go b/lib/scratch_test.go
index f33abcd..0ea1954 100644
--- a/lib/scratch_test.go
+++ b/lib/scratch_test.go
@@ -244,3 +244,69 @@ func TestWaitForScratchOrgReady_times_out(t *testing.T) {
 		t.Errorf("Expected timeout error, got: %v", err)
 	}
 }
+
+func TestCreateScratchOrgWithDuration_sets_DurationDays(t *testing.T) {
+	var receivedBody map[string]interface{}
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.Method == "POST" && strings.Contains(r.URL.Path, "ScratchOrgInfo") {
+			json.NewDecoder(r.Body).Decode(&receivedBody)
+			w.WriteHeader(http.StatusCreated)
+			json.NewEncoder(w).Encode(map[string]interface{}{
+				"id":      "2SRp0000000MFpOAM",
+				"success": true,
+			})
+			return
+		}
+		w.WriteHeader(http.StatusNotFound)
+	}))
+	defer server.Close()
+
+	force := &Force{
+		Credentials: &ForceSession{
+			InstanceUrl: server.URL,
+			AccessToken: "test-token",
+		},
+	}
+
+	_, err := force.CreateScratchOrgWithDuration("", []string{}, "", []string{}, "", "", 14)
+
+	if err != nil {
+		t.Fatalf("Expected no error, got: %v", err)
+	}
+	if receivedBody["DurationDays"] != "14" {
+		t.Errorf("Expected DurationDays to be '14', got: %v", receivedBody["DurationDays"])
+	}
+}
+
+func TestCreateScratchOrgWithRelease_uses_default_duration_of_7(t *testing.T) {
+	var receivedBody map[string]interface{}
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.Method == "POST" && strings.Contains(r.URL.Path, "ScratchOrgInfo") {
+			json.NewDecoder(r.Body).Decode(&receivedBody)
+			w.WriteHeader(http.StatusCreated)
+			json.NewEncoder(w).Encode(map[string]interface{}{
+				"id":      "2SRp0000000MFpOAM",
+				"success": true,
+			})
+			return
+		}
+		w.WriteHeader(http.StatusNotFound)
+	}))
+	defer server.Close()
+
+	force := &Force{
+		Credentials: &ForceSession{
+			InstanceUrl: server.URL,
+			AccessToken: "test-token",
+		},
+	}
+
+	_, err := force.CreateScratchOrgWithRelease("", []string{}, "", []string{}, "", "")
+
+	if err != nil {
+		t.Fatalf("Expected no error, got: %v", err)
+	}
+	if receivedBody["DurationDays"] != "7" {
+		t.Errorf("Expected DurationDays to be '7', got: %v", receivedBody["DurationDays"])
+	}
+}