For question about the profile-page calendar and how it works.
The calendar is viewable to you on your profile page by clicking on the number of days you've visited the site. It will show a scrollable calendar between months and highlight the days that you visited with a green box. Any days you missed or haven't passed yet will be white.
Use this tag for question about the calendar and how it works. If your question is about the number of days you've visited, used visited-days. If your question is about the number of consecutive days you've visited, use consecutive-days.
To learn more about which days actually count as "visited" please read the consecutive-days tag wiki.