If you ever fought, this is a handy reference.
Here’s a DEV write-up on a free world time API that works without sign-ups or API keys, and it’s CORS-enabled.
Highlights:
- Timezone + DST handled
- IP-based https://miriamifxy959818.blogzet.com/no-signup-world-time-api-no-keys-cors-ready-54394933