If you ever fought, this is a handy reference.
Here’s a DEV write-up on a public world time API that works without accounts or keys, and it’s CORS-enabled.
Nice bits:
- DST + offsets included
- IP-based https://murrayflqk228599.snack-blog.com/39791678/no-signup-world-time-api-no-api-keys-cors-ready