Make the problem reproducible
Start with the exact page URL and the selected year, month, date, and region. Explain the result you saw and the result you expected. For a calculation or date issue, include your timezone and whether you used a saved location.
For example: a US holiday calendar shows the holiday's calendar date, but your workplace observes it on the preceding Friday. Include the government's observed-date listing so the report can distinguish a data error from a coverage limitation.
Choose a useful source
Prefer a government calendar for public holidays, an organizer's announcement for an event, or an astronomical institution for phase times. Include a direct link and specify whether the source uses UTC or local time. A screenshot without the timezone can conceal the reason two results differ.
Display and export issues
Include your browser, device type, selected image aspect ratio, and whether the error appears on screen, in the downloaded image, or both. Describe missing weekday headings, cropped text, or wrong dates specifically. Remove private information from any example you share.
Send your report
Use the 23 AI Studio website linked on our contact page and identify the message as a MixCalendar correction. Reports help us reproduce a problem, compare it with the source, and determine whether the data, explanation, or rendering needs to change. We do not promise a fixed response time.