About WonderCalendar

One calendar for the movies, TV series and anime you are waiting for.

WonderCalendar started from a simple annoyance: the dates of the things you want to watch are scattered. A movie is announced in one place, a new season of a series in another, and an anime that starts in Japan next week is somewhere else again. Keeping track of them means opening five sites and a notes app. This site puts them on a single calendar, in the same place and in the same format, so you can see at a glance what comes out and when.

It is an independent project, run by one person, and it is free to use. There are no accounts and no sign-up.

What you can do

• Browse by month, by timeline or by year. The month view shows every day with its releases, the timeline lists them one day after the other, and the year overview shows at a glance which days are busy.
• Choose what you see. Movies, TV series and anime can be switched on and off one by one, and each category has its own colours. Day and night modes are both supported.
• Open any title for its release date with a countdown, genres, a short synopsis and, when one exists, the trailer.
• Save titles with the heart. Your list, called the Wonder List, stays on your own device. You can also ask for an alert a week before, a day before and on the day a saved title comes out.
• See what other people are waiting for. Titles that many visitors have saved recently get a “Popular” badge and are shown first in their day. How it is calculated.

Where the dates come from

• Movies come from TMDB, and the date shown is the US theatrical release date. In other countries the movie may come out earlier or later.
• TV series come from TMDB too. TMDB has no per-country dates for series, so the date is the original first-air date of the season or series.
• Anime come from AniList, which only stores the Japanese start date. When the broadcast time of the first episode is known, it is converted to US Eastern time, which can move the date by a day. When it is not known, the Japanese date is shown and clearly flagged as such.

Showing everything in US dates is a choice, not a claim: it keeps all three categories on the same calendar and in the same time reference.

In short: movies and TV series come from TMDB and anime from AniList. This product uses the TMDB API but is not endorsed or certified by TMDB.

What is left out

Adult content, news, talk shows, reality shows and soap operas are excluded, because the calendar is about films, series and anime people plan to watch. Titles with no usable date are not shown either.

How often it updates

The release data is refreshed automatically every hour, and the list of Popular titles every thirty minutes. Dates that studios and broadcasters change usually appear in the calendar within a few hours of the change in the sources.

Saving titles and alerts

The heart on a title adds it to your Wonder List. The list lives in your browser, on your device: nobody else can see it and it is not tied to any account, which also means it does not follow you to another device. In the Options you can turn alerts on and choose when you get them: one week before, one day before, or on the day. You can also tell the site to remove a title from your list the day after it comes out.

When you save a title, the site also counts it as one anonymous “like”, which is what makes the Popular badge possible. The privacy page says exactly what is kept.

The Popular badge

A small flame and the word “Popular” mark the titles that visitors are saving the most. The rule is meant to work the same way whether the site has ten visitors or ten thousand, because it compares titles with each other instead of using a fixed number of likes.

• Only titles that are not out yet take part. Once a title is released it leaves the ranking.
• Recent likes weigh more. A like counts fully when it is new and loses half of its weight every 14 days. A title that was saved a lot long ago slowly makes room for the ones people are saving now, and the badge keeps working even if the number of visitors drops.
• Speed counts. If most of a title's likes arrived in the last two days, its score gets a boost, so a title that is taking off can be noticed before it has piled up many likes.
• Only the top of the list is Popular: at most the best 15% of the titles that are not out yet.
• A minimum bar. A title also needs a minimum score, a small share of the people who saved something in the last 30 days. With very few visitors, one like on its own is never enough.
• Each device counts once per title. Removing the heart removes the like.

Popular titles are listed first in their day, then the others.

Limits

Release dates are announced by studios and broadcasters and can change at any time, and the sources can be late or wrong. WonderCalendar is a planning aid, not an official schedule: for anything that matters, such as buying tickets, check with the cinema or the service that will stream the title. If you spot a mistake, write to us.

How the site pays for itself

WonderCalendar is free. Hosting, the database and the data services cost money, so the site shows advertising from Google AdSense. If you are in the European Economic Area or the United Kingdom, Google asks for your consent before showing personalised ads, and you can refuse. What is collected, by whom and how to change your choices is explained on the Privacy & cookies page.

Something wrong or missing?

Release dates move, and the sources are not perfect. If you see a wrong date or a title that should be there, tell us: every report helps.