diff --git a/src/components/ha-form/ha-form-positive_time_period_dict.ts b/src/components/ha-form/ha-form-positive_time_period_dict.ts
index d5a0db5975..453eaf2a68 100644
--- a/src/components/ha-form/ha-form-positive_time_period_dict.ts
+++ b/src/components/ha-form/ha-form-positive_time_period_dict.ts
@@ -6,8 +6,7 @@ import {
   query,
   TemplateResult,
 } from "lit-element";
-import { fireEvent } from "../../common/dom/fire_event";
-import "../paper-time-input";
+import "../ha-time-input";
 import { HaFormElement, HaFormTimeData, HaFormTimeSchema } from "./ha-form";
 
 @customElement("ha-form-positive_time_period_dict")
@@ -20,7 +19,7 @@ export class HaFormTimePeriod extends LitElement implements HaFormElement {
 
   @property() public suffix!: string;
 
-  @query("paper-time-input", true) private _input?: HTMLElement;
+  @query("ha-time-input", true) private _input?: HTMLElement;
 
   public focus() {
     if (this._input) {
@@ -30,86 +29,13 @@ export class HaFormTimePeriod extends LitElement implements HaFormElement {
 
   protected render(): TemplateResult {
     return html`
-      <paper-time-input
+      <ha-time-input
         .label=${this.label}
         .required=${this.schema.required}
-        .autoValidate=${this.schema.required}
-        error-message="Required"
-        enable-second
-        format="24"
-        .hour=${this._parseDuration(this._hours)}
-        .min=${this._parseDuration(this._minutes)}
-        .sec=${this._parseDuration(this._seconds)}
-        @hour-changed=${this._hourChanged}
-        @min-changed=${this._minChanged}
-        @sec-changed=${this._secChanged}
-        float-input-labels
-        no-hours-limit
-        always-float-input-labels
-        hour-label="hh"
-        min-label="mm"
-        sec-label="ss"
-      ></paper-time-input>
+        .data=${this.data}
+      ></ha-time-input>
     `;
   }
-
-  private get _hours() {
-    return this.data && this.data.hours ? Number(this.data.hours) : 0;
-  }
-
-  private get _minutes() {
-    return this.data && this.data.minutes ? Number(this.data.minutes) : 0;
-  }
-
-  private get _seconds() {
-    return this.data && this.data.seconds ? Number(this.data.seconds) : 0;
-  }
-
-  private _parseDuration(value) {
-    return value.toString().padStart(2, "0");
-  }
-
-  private _hourChanged(ev) {
-    this._durationChanged(ev, "hours");
-  }
-
-  private _minChanged(ev) {
-    this._durationChanged(ev, "minutes");
-  }
-
-  private _secChanged(ev) {
-    this._durationChanged(ev, "seconds");
-  }
-
-  private _durationChanged(ev, unit) {
-    let value = Number(ev.detail.value);
-
-    if (value === this[`_${unit}`]) {
-      return;
-    }
-
-    let hours = this._hours;
-    let minutes = this._minutes;
-
-    if (unit === "seconds" && value > 59) {
-      minutes += Math.floor(value / 60);
-      value %= 60;
-    }
-
-    if (unit === "minutes" && value > 59) {
-      hours += Math.floor(value / 60);
-      value %= 60;
-    }
-
-    fireEvent(this, "value-changed", {
-      value: {
-        hours,
-        minutes,
-        seconds: this._seconds,
-        ...{ [unit]: value },
-      },
-    });
-  }
 }
 
 declare global {
diff --git a/src/components/ha-form/ha-form.ts b/src/components/ha-form/ha-form.ts
index bab97d6a22..25cf8cd18d 100644
--- a/src/components/ha-form/ha-form.ts
+++ b/src/components/ha-form/ha-form.ts
@@ -8,6 +8,7 @@ import {
 } from "lit-element";
 import { dynamicElement } from "../../common/dom/dynamic-element-directive";
 import { fireEvent } from "../../common/dom/fire_event";
+import { HaTimeData } from "../ha-time-input";
 import "./ha-form-boolean";
 import "./ha-form-constant";
 import "./ha-form-float";
@@ -71,7 +72,7 @@ export interface HaFormBooleanSchema extends HaFormBaseSchema {
 }
 
 export interface HaFormTimeSchema extends HaFormBaseSchema {
-  type: "time";
+  type: "positive_time_period_dict";
 }
 
 export interface HaFormDataContainer {
@@ -93,11 +94,7 @@ export type HaFormFloatData = number;
 export type HaFormBooleanData = boolean;
 export type HaFormSelectData = string;
 export type HaFormMultiSelectData = string[];
-export interface HaFormTimeData {
-  hours?: number;
-  minutes?: number;
-  seconds?: number;
-}
+export type HaFormTimeData = HaTimeData;
 
 export interface HaFormElement extends LitElement {
   schema: HaFormSchema | HaFormSchema[];
diff --git a/src/components/ha-time-input.ts b/src/components/ha-time-input.ts
new file mode 100644
index 0000000000..e72e1a09d9
--- /dev/null
+++ b/src/components/ha-time-input.ts
@@ -0,0 +1,146 @@
+import {
+  customElement,
+  html,
+  LitElement,
+  property,
+  query,
+  TemplateResult,
+} from "lit-element";
+import { fireEvent } from "../common/dom/fire_event";
+import "./paper-time-input";
+
+export interface HaTimeData {
+  hours?: number;
+  minutes?: number;
+  seconds?: number;
+  milliseconds?: number;
+}
+
+@customElement("ha-time-input")
+class HaTimeInput extends LitElement {
+  @property() public data!: HaTimeData;
+
+  @property() public label?: string;
+
+  @property() public suffix?: string;
+
+  @property({ type: Boolean }) public required?: boolean;
+
+  @property({ type: Boolean }) public enableMillisecond?: boolean;
+
+  @query("paper-time-input", true) private _input?: HTMLElement;
+
+  public focus() {
+    if (this._input) {
+      this._input.focus();
+    }
+  }
+
+  protected render(): TemplateResult {
+    return html`
+      <paper-time-input
+        .label=${this.label}
+        .required=${this.required}
+        .autoValidate=${this.required}
+        error-message="Required"
+        enable-second
+        .enableMillisecond=${this.enableMillisecond}
+        format="24"
+        .hour=${this._parseDuration(this._hours)}
+        .min=${this._parseDuration(this._minutes)}
+        .sec=${this._parseDuration(this._seconds)}
+        .millisec=${this._parseDurationMillisec(this._milliseconds)}
+        @hour-changed=${this._hourChanged}
+        @min-changed=${this._minChanged}
+        @sec-changed=${this._secChanged}
+        @millisec-changed=${this._millisecChanged}
+        float-input-labels
+        no-hours-limit
+        always-float-input-labels
+        hour-label="hh"
+        min-label="mm"
+        sec-label="ss"
+        millisec-label="ms"
+      ></paper-time-input>
+    `;
+  }
+
+  private get _hours() {
+    return this.data && this.data.hours ? Number(this.data.hours) : 0;
+  }
+
+  private get _minutes() {
+    return this.data && this.data.minutes ? Number(this.data.minutes) : 0;
+  }
+
+  private get _seconds() {
+    return this.data && this.data.seconds ? Number(this.data.seconds) : 0;
+  }
+
+  private get _milliseconds() {
+    return this.data && this.data.milliseconds
+      ? Number(this.data.milliseconds)
+      : 0;
+  }
+
+  private _parseDuration(value) {
+    return value.toString().padStart(2, "0");
+  }
+
+  private _parseDurationMillisec(value) {
+    return value.toString().padStart(3, "0");
+  }
+
+  private _hourChanged(ev) {
+    this._durationChanged(ev, "hours");
+  }
+
+  private _minChanged(ev) {
+    this._durationChanged(ev, "minutes");
+  }
+
+  private _secChanged(ev) {
+    this._durationChanged(ev, "seconds");
+  }
+
+  private _millisecChanged(ev) {
+    this._durationChanged(ev, "milliseconds");
+  }
+
+  private _durationChanged(ev, unit) {
+    let value = Number(ev.detail.value);
+
+    if (value === this[`_${unit}`]) {
+      return;
+    }
+
+    let hours = this._hours;
+    let minutes = this._minutes;
+
+    if (unit === "seconds" && value > 59) {
+      minutes += Math.floor(value / 60);
+      value %= 60;
+    }
+
+    if (unit === "minutes" && value > 59) {
+      hours += Math.floor(value / 60);
+      value %= 60;
+    }
+
+    fireEvent(this, "value-changed", {
+      value: {
+        hours,
+        minutes,
+        seconds: this._seconds,
+        milliseconds: this._milliseconds,
+        ...{ [unit]: value },
+      },
+    });
+  }
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    "ha-time-input": HaTimeInput;
+  }
+}
diff --git a/src/components/paper-time-input.js b/src/components/paper-time-input.js
index 7ec7cc64ad..944360227d 100644
--- a/src/components/paper-time-input.js
+++ b/src/components/paper-time-input.js
@@ -103,6 +103,10 @@ export class PaperTimeInput extends PolymerElement {
         [hidden] {
           display: none !important;
         }
+
+        #millisec {
+          width: 38px;
+        }
       </style>
 
       <label hidden$="[[hideLabel]]">[[label]]</label>
@@ -167,6 +171,28 @@ export class PaperTimeInput extends PolymerElement {
           always-float-label$="[[alwaysFloatInputLabels]]"
           disabled="[[disabled]]"
           hidden$="[[!enableSecond]]"
+        >
+          <span hidden$="[[!enableMillisecond]]" suffix slot="suffix">:</span>
+        </paper-input>
+
+        <!-- Millisec Input -->
+        <paper-input
+          id="millisec"
+          type="number"
+          value="{{millisec}}"
+          label="[[millisecLabel]]"
+          on-change="_formatMillisec"
+          on-focus="_onFocus"
+          required
+          auto-validate="[[autoValidate]]"
+          prevent-invalid-input
+          maxlength="3"
+          max="999"
+          min="0"
+          no-label-float$="[[!floatInputLabels]]"
+          always-float-label$="[[alwaysFloatInputLabels]]"
+          disabled="[[disabled]]"
+          hidden$="[[!enableMillisecond]]"
         >
         </paper-input>
 
@@ -263,6 +289,13 @@ export class PaperTimeInput extends PolymerElement {
         type: String,
         notify: true,
       },
+      /**
+       * milli second
+       */
+      millisec: {
+        type: String,
+        notify: true,
+      },
       /**
        * Suffix for the hour input
        */
@@ -284,6 +317,13 @@ export class PaperTimeInput extends PolymerElement {
         type: String,
         value: "",
       },
+      /**
+       * Suffix for the milli sec input
+       */
+      millisecLabel: {
+        type: String,
+        value: "",
+      },
       /**
        * show the sec field
        */
@@ -291,6 +331,13 @@ export class PaperTimeInput extends PolymerElement {
         type: Boolean,
         value: false,
       },
+      /**
+       * show the milli sec field
+       */
+      enableMillisecond: {
+        type: Boolean,
+        value: false,
+      },
       /**
        * limit hours input
        */
@@ -313,7 +360,7 @@ export class PaperTimeInput extends PolymerElement {
         type: String,
         notify: true,
         readOnly: true,
-        computed: "_computeTime(min, hour, sec, amPm)",
+        computed: "_computeTime(min, hour, sec, millisec, amPm)",
       },
     };
   }
@@ -332,6 +379,10 @@ export class PaperTimeInput extends PolymerElement {
     if (this.enableSecond && !this.$.sec.validate()) {
       valid = false;
     }
+    // Validate milli second field
+    if (this.enableMillisecond && !this.$.millisec.validate()) {
+      valid = false;
+    }
     // Validate AM PM if 12 hour time
     if (this.format === 12 && !this.$.dropdown.validate()) {
       valid = false;
@@ -342,17 +393,27 @@ export class PaperTimeInput extends PolymerElement {
   /**
    * Create time string
    */
-  _computeTime(min, hour, sec, amPm) {
+  _computeTime(min, hour, sec, millisec, amPm) {
     let str;
-    if (hour || min || (sec && this.enableSecond)) {
+    if (
+      hour ||
+      min ||
+      (sec && this.enableSecond) ||
+      (millisec && this.enableMillisecond)
+    ) {
       hour = hour || "00";
       min = min || "00";
       sec = sec || "00";
+      millisec = millisec || "000";
       str = hour + ":" + min;
       // add sec field
       if (this.enableSecond && sec) {
         str = str + ":" + sec;
       }
+      // add milli sec field
+      if (this.enableMillisecond && millisec) {
+        str = str + ":" + millisec;
+      }
       // No ampm on 24 hr time
       if (this.format === 12) {
         str = str + " " + amPm;
@@ -366,6 +427,15 @@ export class PaperTimeInput extends PolymerElement {
     ev.target.inputElement.inputElement.select();
   }
 
+  /**
+   * Format milli sec
+   */
+  _formatMillisec() {
+    if (this.millisec.toString().length === 1) {
+      this.millisec = this.millisec.toString().padStart(3, "0");
+    }
+  }
+
   /**
    * Format sec
    */
diff --git a/src/data/script.ts b/src/data/script.ts
index a7cfa7506a..e528754f5e 100644
--- a/src/data/script.ts
+++ b/src/data/script.ts
@@ -45,8 +45,15 @@ export interface DeviceAction {
   entity_id: string;
 }
 
+export interface DelayActionParts {
+  milliseconds?: number;
+  seconds?: number;
+  minutes?: number;
+  hours?: number;
+  days?: number;
+}
 export interface DelayAction {
-  delay: number;
+  delay: number | Partial<DelayActionParts>;
 }
 
 export interface SceneAction {
diff --git a/src/panels/config/automation/action/types/ha-automation-action-delay.ts b/src/panels/config/automation/action/types/ha-automation-action-delay.ts
index 9b44078768..b8e7cee0a5 100644
--- a/src/panels/config/automation/action/types/ha-automation-action-delay.ts
+++ b/src/panels/config/automation/action/types/ha-automation-action-delay.ts
@@ -1,10 +1,12 @@
 import "@polymer/paper-input/paper-input";
 import { customElement, html, LitElement, property } from "lit-element";
+import { fireEvent } from "../../../../../common/dom/fire_event";
 import "../../../../../components/entity/ha-entity-picker";
+import { HaFormTimeData } from "../../../../../components/ha-form/ha-form";
 import "../../../../../components/ha-service-picker";
 import { DelayAction } from "../../../../../data/script";
 import { HomeAssistant } from "../../../../../types";
-import { ActionElement, handleChangeEvent } from "../ha-automation-action-row";
+import { ActionElement } from "../ha-automation-action-row";
 
 @customElement("ha-automation-action-delay")
 export class HaDelayAction extends LitElement implements ActionElement {
@@ -17,22 +19,46 @@ export class HaDelayAction extends LitElement implements ActionElement {
   }
 
   protected render() {
-    const { delay } = this.action;
+    let data: HaFormTimeData = {};
+
+    if (typeof this.action.delay !== "object") {
+      const parts = this.action.delay?.toString().split(":") || [];
+      data = {
+        hours: Number(parts[0]),
+        minutes: Number(parts[1]),
+        seconds: Number(parts[2]),
+        milliseconds: Number(parts[3]),
+      };
+    } else {
+      const { days, minutes, seconds, milliseconds } = this.action.delay;
+      let { hours } = this.action.delay || 0;
+      hours = (hours || 0) + (days || 0) * 24;
+      data = {
+        hours: hours,
+        minutes: minutes,
+        seconds: seconds,
+        milliseconds: milliseconds,
+      };
+    }
 
     return html`
-      <paper-input
-        .label=${this.hass.localize(
-          "ui.panel.config.automation.editor.actions.type.delay.delay"
-        )}
-        name="delay"
-        .value=${delay}
+      <ha-time-input
+        .data=${data}
+        enableMillisecond
         @value-changed=${this._valueChanged}
-      ></paper-input>
+      ></ha-time-input>
     `;
   }
 
-  private _valueChanged(ev: CustomEvent): void {
-    handleChangeEvent(this, ev);
+  private _valueChanged(ev: CustomEvent) {
+    ev.stopPropagation();
+    const value = ev.detail.value;
+    if (!value) {
+      return;
+    }
+    fireEvent(this, "value-changed", {
+      value: { ...this.action, delay: value },
+    });
   }
 }