Sanity datetime schema type displaying incorrect day of week

You're absolutely right - June 15, 2024 was a Saturday, not a Sunday. That's definitely concerning if your datetime picker is showing the wrong day of the week.

What you're experiencing:

This sounds like it could be a bug with the calendar display in Sanity Studio's datetime input. The datetime schema type uses a date picker component that displays a calendar, and if the day-of-week labels are misaligned, it would show dates on the wrong days.

Important clarification:

If this is a display bug in the calendar picker itself, it's worth checking whether the actual date values being stored are correct. You can verify this by:

1. Looking at the raw data in your dataset (via Vision or API queries)
2. Checking if the ISO date string stored is 2024-06-15 (which would be correct)

Often these UI bugs affect only the visual calendar labels, not the underlying data values.

Where to report this:

Since this appears to be a bug with Sanity Studio itself, here's where you should reach out:

1. GitHub Issues - This is the best place to report bugs. You can search existing issues first to see if anyone else has reported this, and if not, create a new issue with details about:

   • Your Sanity Studio version (sanity --version)
   • Browser and OS
   • Screenshots showing the incorrect day labels

2. Sanity Community Slack - Join the community Slack for faster responses from both Sanity team members and other community members who might have encountered this

3. Support channels - If you're on a paid plan, you can also reach out through your dedicated support channels

Quick troubleshooting:

Before reporting, try:

• Updating to the latest Studio version: npm update sanity
• Clearing your browser cache
• Testing in a different browser

This will help determine if it's already been fixed in a newer version or if it's a browser-specific issue. Either way, the Sanity team will want to know about this so they can investigate!