NV Elements Catalog Starters Repo System Themes Getting Started Getting Started Installation CLI MCP Skills Lint Integrations Getting Started Angular Bundles Custom Elements Golang Hugo Import Maps Lit Lit Library MCP Apps NextJS Nuxt Preact React SolidJS Svelte TypeScript Vue About Changelog Metrics Support Accessibility Contributions Requests Migration Foundations Overview Typography Iconography Themes Design Tokens Size & Space Objects Interactions Support Status Color Animation Fonts Layers Custom Layout Horizontal Vertical Grid Popovers i18n Visualization View Transitions Elements Accordion Alert Avatar Badge Breadcrumb Button Button Group Card Chat Message Checkbox Color Combobox Copy Button Datagrid Integrations Column Action Column Alignment Column Fixed Column width Container Card Display Settings Footer Heatmap Keynav Multi Select Pagination Panel Detail Panel Grid Performance Placeholder Row Action Row Groups Row Sort Scroll Height Single Select Stripe Date Datetime Dialog Divider Dot Drawer Dropdown Dropdown Group Dropzone File Format Datetime Format Number Format Relative Time Forms Validation Actions Control Icon Icon Button Input Input Group Logo Menu Month Notification Page Page Header Page Loader Pagination Progressive Filter Chip Progress Bar Progress Ring Password Preferences Input Pulse Radio Range Resize Handle Search Select Skeleton Sort Button Sparkline Star Rating Steps Switch Tabs Tag Textarea Time Toast Toggletip Toolbar Tooltip Tree Week Patterns Authentication Browse Chat Dashboard Editor Empty States Heatmap Keyboard Shortcut Logging Media Navigation Onboarding Panel Responsive Search Subheader Trend Code Codeblock Monaco Input Diff Input Editor Diff Editor Problems Markdown Markdown CSS Utility Labs Responsive Layout Viewport Container Patterns Forms API Design Properties & Attributes Slots Registration CustomEvents Stateless Composition Styles Packaging Glossary Logs Internal Guidelines Agent Harness Agent Tooling Agent Ownership Documentation Examples TypeScript Testing Unit Testing Accessibility Testing Lighthouse Testing SSR Testing Visual Testing Troubleshooting Component Creation Internal Examples All Examples

Format Datetime

beta:  0.2.3 Coverage: unknown Bundle: 10kb Lighthouse: 100 Axe Core Released: 0.0.0
Overview API Examples
DefaultDateStyleTimeStyleGranularTimeOnlyLocaleDateAttributeTimeZoneTimeZoneName

Default

2023-07-28T04:20:17.434Z
Edit Example

Formats a date/time value as localized text using the Intl.DateTimeFormat API. Renders inside a semantic time element. Granular options (weekday, year, month, day, hour, minute, second) mirror the Intl.DateTimeFormat API. 'numeric' omits zero-padding, '2-digit' zero-pads.

Date Style

2023-07-28T04:20:17.434Z 2023-07-28T04:20:17.434Z 2023-07-28T04:20:17.434Z 2023-07-28T04:20:17.434Z
Edit Example

Preset date formatting style: 'full' | 'long' | 'medium' | 'short'.Preset styles take precedence over granular date and time part options.

DateStyle Description full long medium short

Time Style

2023-07-28T04:20:17.434Z 2023-07-28T04:20:17.434Z
Edit Example

Preset time formatting style: 'full' | 'long' | 'medium' | 'short'.Preset styles take precedence over granular date and time part options.

TimeStyle Description full long medium short

Granular

2023-07-28T04:20:17.434Z 2023-07-28T04:20:17.434Z
Edit Example

Granular date part options for precise formatting control. Use when presets don't match your layout, such as weekday and month only. Do not combine with date-style or time-style; style presets take priority if both appear.

Time Only

2023-07-28T04:20:17.434Z 2023-07-28T04:20:17.434Z
Edit Example

Time-only formatting with granular hour, minute, and second options. Use for clocks, time labels, or timestamps where the date is unnecessary.

Locale

2023-07-28T04:20:17.434Z 2023-07-28T04:20:17.434Z 2023-07-28T04:20:17.434Z
Edit Example

Language tag (such as en-US, de-DE). Defaults to document.documentElement.lang or browser default.

Locale Description string default

Date Attribute

Edit Example

Date attribute input for values supplied by JavaScript or bound data. By default, the component formats text content, which also serves as the SSR fallback, and date wins when both are present.

Time Zone

2023-07-28T04:20:17.434Z 2023-07-28T04:20:17.434Z
Edit Example

IANA time zone identifier (such as 'America/New_York', 'UTC').

TimeZone Description string default

Time Zone Name

2023-07-28T04:20:17.434Z 2023-07-28T04:20:17.434Z
Edit Example

Time zone name display: 'long' | 'short'. Use it with granular options only; preset styles ignore it.

TimeZoneName Description long short