# XWUIDisplayFormatDuration

Duration label from hours/minutes/seconds fields. Deterministic polyfill (not live Intl.DurationFormat) so engine baselines match. CountdownTimer stays a ticking widget.

## Basic Usage

0s.

```example
file: examples/BasicUsage.ts
html: examples/BasicUsage.html
title: Basic Usage
description: 0s.
```

## Hours

1h 2m 3s.

```example
file: examples/Hours.ts
html: examples/Hours.html
title: Hours
description: 1h 2m 3s.
```

## Minutes only

45m.

```example
file: examples/MinutesOnly.ts
html: examples/MinutesOnly.html
title: Minutes only
description: 45m.
```

## Seconds

9s.

```example
file: examples/Seconds.ts
html: examples/Seconds.html
title: Seconds
description: 9s.
```

```api
```