Time Warp
Compare server-rendered timestamps with a live client-side clock.
When was this rendered?
Astro components run on the server. Their output is plain HTML — fast, crawlable, and accessible without JavaScript. Islands add interactivity only where you need it.
Server-rendered
Monday, 8 June 2026 at 22:01:05 UTC
Baked in at request time. No JavaScript required to display this.
Client-hydrated
Monday, 8 June 2026 at 22:01:05 UTC
Updates every second via a Svelte island with client:load.
The difference
| Approach | Updates | JavaScript |
|---|---|---|
| Server timestamp | Per request / build | None |
| Live clock island | Every second | Svelte bundle only |