Why did a reminder not arrive, or open a different day?

Check that the reminder is enabled, not paused, outside quiet hours and allowed by your device or browser. A meal already logged can suppress its reminder. Device Focus settings and notification delivery can also prevent you from seeing a reminder.

Open You → Units and time to check the time zone and start of your diary day. A reminder belongs to its scheduled diary day. If you open it later, that can differ from today's date. Report the reminder type, expected time, platform and day if the behaviour still looks wrong.