README.md

title	path
Custom dependencies	/Europe/London

Calling fetch(url) inside a load function registers url as a dependency. Sometimes it's not appropriate to use fetch, in which case you can specify a dependency manually with the depends(url) function.

Since any string that begins with an [a-z]+: pattern is a valid URL, we can create custom invalidation keys like data:now.

Update src/routes/+layout.js to return a value directly rather than making a fetch call, and add the depends:

/// file: src/routes/+layout.js
export async function load({ +++depends+++ }) {
	+++depends('data:now');+++

	return {
		now: +++Date.now()+++
	};
}

Now, update the invalidate call in src/routes/[...timezone]/+page.svelte:

/// file: src/routes/[...timezone]/+page.svelte
<script>
	import { onMount } from 'svelte';
	import { invalidate } from '$app/navigation';

	export let data;

	onMount(() => {
		const interval = setInterval(() => {
			invalidate(+++'data:now'+++);
		}, 1000);

		return () => {
			clearInterval(interval);
		};
	});
</script>