expose timezone list & details

src/lib/TimezoneInput.svelte

@@ -15,32 +15,21 @@
 	const wbr = (str: string): string => {
 		return str.replace(/\//g, '/<wbr />');
 	};
-</script>
 
-<script lang="ts">
-	import type { ClassValue } from 'svelte/elements';
+	/**
+	 * Details about a timezone.
+	 */
+	export type TimezoneDetail = {
+		timeZone: string;
+		offset?: string;
+		long?: string;
+		short?: string;
+	};
 
-	import Combobox, { type ComboboxOption } from './Combobox.svelte';
-
-	interface Props {
-		label?: string;
-		name?: string;
-		value?: string;
-		invalidMessage?: string;
-		required?: boolean;
-		class?: ClassValue | null | undefined;
-	}
-
-	let {
-		label,
-		name,
-		value = $bindable(''),
-		invalidMessage = 'Please select a timezone',
-		required,
-		class: classValue
-	}: Props = $props();
-
-	const sortedTimeZones = Intl.supportedValuesOf('timeZone')
+	/**
+	 * A sorted list of timezones with details.
+	 */
+	export const sortedTimeZones: TimezoneDetail[] = Intl.supportedValuesOf('timeZone')
 		.map((timeZone) => {
 			// get short offset (e.g. GMT+1) for the timezone
 			const offset = getTimeZonePart(timeZone, 'shortOffset');
@@ -64,6 +53,40 @@
 			return a.timeZone.localeCompare(b.timeZone);
 		});
 
+	/**
+	 * A map of timezone names to details.
+	 */
+	export const timezoneMap: Record<string, TimezoneDetail> = sortedTimeZones.reduce(
+		(acc, timeZone) => {
+			acc[timeZone.timeZone] = timeZone;
+			return acc;
+		},
+		{} as Record<string, TimezoneDetail>
+	);
+</script>
+
+<script lang="ts">
+	import type { ClassValue } from 'svelte/elements';
+	import Combobox, { type ComboboxOption } from './Combobox.svelte';
+
+	interface Props {
+		label?: string;
+		name?: string;
+		value?: string;
+		invalidMessage?: string;
+		required?: boolean;
+		class?: ClassValue | null | undefined;
+	}
+
+	let {
+		label,
+		name,
+		value = $bindable(''),
+		invalidMessage = 'Please select a timezone',
+		required,
+		class: classValue
+	}: Props = $props();
+
 	const options: ComboboxOption[] = sortedTimeZones.map((timeZone) => {
 		const infotext = [...new Set([timeZone.short, timeZone.offset])]
 			.filter((item) => item !== undefined)

src/lib/index.ts

@@ -23,7 +23,12 @@ export { default as Tabs, type TabPage } from './Tabs.svelte';
 export { default as TextareaInput } from './TextareaInput.svelte';
 export { default as TextInput } from './TextInput.svelte';
 export { default as TimeInput, formatTime } from './TimeInput.svelte';
-export { default as TimezoneInput } from './TimezoneInput.svelte';
+export {
+	default as TimezoneInput,
+	type TimezoneDetail,
+	sortedTimeZones,
+	timezoneMap
+} from './TimezoneInput.svelte';
 export { default as ToggleGroup } from './ToggleGroup.svelte';
 export { default as ToggleSelect } from './ToggleSelect.svelte';
 export {