TimePicker

Description #

<vaadin-time-picker> is a Web Component providing a time-selection field.

<vaadin-time-picker></vaadin-time-picker>

timePicker.value = '14:30';

When the selected value is changed, a value-changed event is triggered.

Styling #

The following custom properties are available for styling:

Custom property	Description	Default
--vaadin-field-default-width	Default width of the field	12em
--vaadin-time-picker-overlay-width	Width of the overlay	auto
--vaadin-time-picker-overlay-max-height	Max height of the overlay	65vh

<vaadin-time-picker> provides the same set of shadow DOM parts and state attributes as <vaadin-text-field>. See <vaadin-text-field> for the styling documentation.

In addition to <vaadin-text-field> parts, the following parts are available for theming:

Part name	Description
toggle-button	The toggle button
overlay	The overlay container
content	The overlay content

In addition to <vaadin-text-field> state attributes, the following state attributes are available for theming:

Attribute	Description
opened	Set when the time-picker dropdown is open

Internal components #

In addition to <vaadin-time-picker> itself, the following internal components are themable:

• <vaadin-time-picker-item> - has the same API as <vaadin-item>.

See Styling Components documentation.

Change events #

Depending on the nature of the value change that the user attempts to commit e.g. by pressing Enter, the component can fire either a change event or an unparsable-change event:

Value change	Event
empty => parsable	change
empty => unparsable	unparsable-change
parsable => empty	change
parsable => parsable	change
parsable => unparsable	change
unparsable => empty	unparsable-change
unparsable => parsable	change
unparsable => unparsable	unparsable-change

Properties #

accessibleName #

Type: string | null | undefined

String used to label the component to screen reader users.

accessibleNameRef #

Type: string | null | undefined

Id of the element used as label of the component to screen reader users.

allowedCharPattern #

Type: string

A pattern matched against individual characters the user inputs.

When set, the field will prevent:

• keydown events if the entered key doesn't match /^allowedCharPattern$/
• paste events if the pasted text doesn't match /^allowedCharPattern*$/
• drop events if the dropped text doesn't match /^allowedCharPattern*$/

For example, to allow entering only numbers and minus signs, use: allowedCharPattern = "[\\d-]"

autofocus #

Type: boolean

Specify that this control should have input focus when the page loads.

autoOpenDisabled #

Type: boolean | null | undefined

Set true to prevent the overlay from opening automatically.

autoselect #

Type: boolean

If true, the input text gets fully selected when the field is focused using click or touch / tap.

clearButtonVisible #

Type: boolean

Set to true to display the clear icon which clears the input.

It is up to the component to choose where to place the clear icon: in the Shadow DOM or in the light DOM. In any way, a reference to the clear icon element should be provided via the clearElement getter.

disabled #

Type: boolean

If true, the user cannot interact with this element.

errorMessage #

Type: string | null | undefined

Error to show when the field is invalid.

helperText #

Type: string | null | undefined

String used for the helper text.

i18n #

Type: TimePickerI18n

The object used to localize this component. To change the default localization, replace the entire i18n object or just the property you want to modify.

The object has the following JSON structure:

{
  // A function to format given `Object` as
  // time string. Object is in the format `{ hours: ..., minutes: ..., seconds: ..., milliseconds: ... }`
  formatTime: (time) => {
    // returns a string representation of the given
    // object in `hh` / 'hh:mm' / 'hh:mm:ss' / 'hh:mm:ss.fff' - formats
  },

  // A function to parse the given text to an `Object` in the format
  // `{ hours: ..., minutes: ..., seconds: ..., milliseconds: ... }`.
  // Must properly parse (at least) text
  // formatted by `formatTime`.
  parseTime: text => {
    // Parses a string in object/string that can be formatted by`formatTime`.
  }
}

Both formatTime and parseTime need to be implemented to ensure the component works properly.

See also: TimePickerI18n

invalid #

Type: boolean

Set to true when the field is invalid.

label #

Type: string | null | undefined

The label text for the input node. When no light dom defined via [slot=label], this value will be used.

manualValidation #

Type: boolean

Set to true to enable manual validation mode. This mode disables automatic constraint validation, allowing you to control the validation process yourself. You can still trigger constraint validation manually with the validate() method or use checkValidity() to assess the component's validity without affecting the invalid state. In manual validation mode, you can also manipulate the invalid property directly through your application logic without conflicts with the component's internal validation.

max #

Type: string

Maximum time allowed.

Supported time formats are in ISO 8601:

• hh:mm
• hh:mm:ss
• hh:mm:ss.fff

min #

Type: string

Minimum time allowed.

Supported time formats are in ISO 8601:

• hh:mm
• hh:mm:ss
• hh:mm:ss.fff

name #

Type: string

The name of this field.

opened #

Type: boolean

True if the dropdown is open, false otherwise.

pattern #

Type: string

A regular expression that the value is checked against. The pattern must match the entire value, not just some subset.

placeholder #

Type: string

A hint to the user of what can be entered in the field.

readonly #

Type: boolean

When present, it specifies that the field is read-only.

required #

Type: boolean

Specifies that the user must fill in a value.

step #

Type: number | null | undefined

Defines the time interval (in seconds) between the items displayed in the time selection box. The default is 1 hour (i.e. 3600).

It also configures the precision of the value string. By default the component formats values as hh:mm but setting a step value lower than one minute or one second, format resolution changes to hh:mm:ss and hh:mm:ss.fff respectively.

Unit must be set in seconds, and for correctly configuring intervals in the dropdown, it need to evenly divide a day.

Note: it is possible to define step that is dividing an hour in inexact fragments (i.e. 5760 seconds which equals 1 hour 36 minutes), but it is not recommended to use it for better UX experience.

title #

Type: string

The text usually displayed in a tooltip popup when the mouse is over the field.

value #

Type: string

The time value for this element.

Supported time formats are in ISO 8601:

• hh:mm (default)
• hh:mm:ss
• hh:mm:ss.fff

Methods #

checkValidity #

Type: (() => boolean) & (() => boolean)

Returns true if the current input value satisfies all constraints (if any). You can override this method for custom validations.

clear #

Type: () => void

Clear the value of the field.

close #

Type: () => void

Closes the dropdown list.

open #

Type: () => void

Opens the dropdown list.

validate #

Type: () => boolean

Validates the field and sets the invalid property based on the result.

The method fires a validated event with the result of the validation.

Events #

change #

Type: TimePickerChangeEvent

Fired when the user commits a value change.

input #

Type: CustomEvent

Fired when the value is changed by the user: on every typing keystroke, and the value is cleared using the clear button.

invalid-changed #

Type: TimePickerInvalidChangedEvent

Fired when the invalid property changes.

opened-changed #

Type: TimePickerOpenedChangedEvent

Fired when the opened property changes.

validated #

Type: TimePickerValidatedEvent

Fired whenever the field is validated.

value-changed #

Type: TimePickerValueChangedEvent

Fired when the value property changes.

Types #

TimePickerChangeEvent #

/**
 * Fired when the user commits a value change.
 */
export type TimePickerChangeEvent = Event & {
  target: TimePicker;
};

TimePickerI18n #

export interface TimePickerI18n {
  parseTime(time: string): TimePickerTime | undefined;
  formatTime(time: TimePickerTime | undefined): string;
}

TimePickerInvalidChangedEvent #

/**
 * Fired when the `invalid` property changes.
 */
export type TimePickerInvalidChangedEvent = CustomEvent<{ value: boolean }>;

TimePickerOpenedChangedEvent #

/**
 * Fired when the `opened` property changes.
 */
export type TimePickerOpenedChangedEvent = CustomEvent<{ value: boolean }>;

TimePickerTime #

/**
 * @license
 * Copyright (c) 2018 - 2025 Vaadin Ltd.
 * This program is available under Apache License Version 2.0, available at https://vaadin.com/license/
 */

export interface TimePickerTime {
  hours: number | string;
  minutes: number | string;
  seconds?: number | string;
  milliseconds?: number | string;
}

TimePickerValidatedEvent #

/**
 * Fired whenever the field is validated.
 */
export type TimePickerValidatedEvent = CustomEvent<{ valid: boolean }>;

TimePickerValueChangedEvent #

/**
 * Fired when the `value` property changes.
 */
export type TimePickerValueChangedEvent = CustomEvent<{ value: string }>;