diff --git a/gallery/src/pages/components/ha-form.ts b/gallery/src/pages/components/ha-form.ts
index fb2cec39af..4d8ad42b73 100644
--- a/gallery/src/pages/components/ha-form.ts
+++ b/gallery/src/pages/components/ha-form.ts
@@ -1,18 +1,18 @@
 /* eslint-disable lit/no-template-arrow */
 import "@material/mwc-button";
-import { LitElement, TemplateResult, html } from "lit";
+import { html, LitElement, TemplateResult } from "lit";
 import { customElement, state } from "lit/decorators";
-import { computeInitialHaFormData } from "../../../../src/components/ha-form/compute-initial-ha-form-data";
-import type { HaFormSchema } from "../../../../src/components/ha-form/types";
-import "../../../../src/components/ha-form/ha-form";
-import "../../components/demo-black-white-row";
 import { mockAreaRegistry } from "../../../../demo/src/stubs/area_registry";
 import { mockDeviceRegistry } from "../../../../demo/src/stubs/device_registry";
 import { mockEntityRegistry } from "../../../../demo/src/stubs/entity_registry";
 import { mockHassioSupervisor } from "../../../../demo/src/stubs/hassio_supervisor";
+import { computeInitialHaFormData } from "../../../../src/components/ha-form/compute-initial-ha-form-data";
+import "../../../../src/components/ha-form/ha-form";
+import type { HaFormSchema } from "../../../../src/components/ha-form/types";
+import { getEntity } from "../../../../src/fake_data/entity";
 import { provideHass } from "../../../../src/fake_data/provide_hass";
 import { HomeAssistant } from "../../../../src/types";
-import { getEntity } from "../../../../src/fake_data/entity";
+import "../../components/demo-black-white-row";
 
 const ENTITIES = [
   getEntity("alarm_control_panel", "alarm", "disarmed", {
@@ -147,7 +147,9 @@ const SCHEMAS: {
       { name: "target", selector: { target: {} } },
       { name: "number", selector: { number: { min: 0, max: 10 } } },
       { name: "boolean", selector: { boolean: {} } },
-      { name: "time", selector: { time: {} } },
+      { name: "time", required: true, selector: { time: {} } },
+      { name: "datetime", required: true, selector: { datetime: {} } },
+      { name: "date", required: true, selector: { date: {} } },
       { name: "action", selector: { action: {} } },
       { name: "text", selector: { text: { multiline: false } } },
       { name: "text_multiline", selector: { text: { multiline: true } } },
diff --git a/src/components/ha-form/compute-initial-ha-form-data.ts b/src/components/ha-form/compute-initial-ha-form-data.ts
index 7c5d728d91..b70148fa86 100644
--- a/src/components/ha-form/compute-initial-ha-form-data.ts
+++ b/src/components/ha-form/compute-initial-ha-form-data.ts
@@ -34,12 +34,25 @@ export const computeInitialHaFormData = (
       };
     } else if ("selector" in field) {
       const selector: Selector = field.selector;
-      if ("boolean" in selector) {
+
+      if ("device" in selector) {
+        data[field.name] = selector.device.multiple ? [] : "";
+      } else if ("entity" in selector) {
+        data[field.name] = selector.entity.multiple ? [] : "";
+      } else if ("area" in selector) {
+        data[field.name] = selector.area.multiple ? [] : "";
+      } else if ("boolean" in selector) {
         data[field.name] = false;
-      } else if ("text" in selector) {
+      } else if (
+        "text" in selector ||
+        "addon" in selector ||
+        "attribute" in selector ||
+        "icon" in selector ||
+        "theme" in selector
+      ) {
         data[field.name] = "";
       } else if ("number" in selector) {
-        data[field.name] = "min" in selector.number ? selector.number.min : 0;
+        data[field.name] = selector.number.min ?? 0;
       } else if ("select" in selector) {
         if (selector.select.options.length) {
           data[field.name] = selector.select.options[0][0];
@@ -50,6 +63,23 @@ export const computeInitialHaFormData = (
           minutes: 0,
           seconds: 0,
         };
+      } else if ("time" in selector) {
+        data[field.name] = "00:00:00";
+      } else if ("date" in selector || "datetime" in selector) {
+        const now = new Date().toISOString().slice(0, 10);
+        data[field.name] = `${now} 00:00:00`;
+      } else if ("color_rgb" in selector) {
+        data[field.name] = [0, 0, 0];
+      } else if ("color_temp" in selector) {
+        data[field.name] = selector.color_temp.min_mireds ?? 153;
+      } else if (
+        "action" in selector ||
+        "media" in selector ||
+        "target" in selector
+      ) {
+        data[field.name] = {};
+      } else {
+        throw new Error("Selector not supported in initial form data");
       }
     }
   });