Same-day birthday reminders/notifications
Currently, in the defaults for new events/tasks, you can set a default birthday reminder for 12:00 on the day before the event, or a custom time.
I would prefer to be able to set a reminder for the same day as the birthday, say at 6:00. That way in the morning, I would know who had birthdays that day.
The current interface doesn't stop you from setting a custom reminder time of, for example, zero days before the event at 6:00, but the setting is not saved. This implementation is not ideal.