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Search showsAbout this SeriesTime calculator
What SeriesTime calculates
SeriesTime is a time-first TV planner — not another episode tracker. Search a real show, mark where you are, and see Time Left in hours and minutes, a finish plan at your pace, and what fits in a short Watch Window. Unlike a basic “episodes × average length” calculator, totals use published per-episode runtimes whenever TVMaze provides them.
Use it when you ask “how long to watch this show?”, “what can I finish in 45 minutes?”, or “when will I catch up before the next episode?”
How the calculation works
After you select a show, SeriesTime loads available episodes and sums published runtimes. Episodes without runtime are never guessed in the show totals — they are excluded and flagged so estimates stay honest. Watch Window and TV Forecast may show an estimated runtime marked with * when a length is missing.
Total runtime = sum of known episode runtimes (with optional filters for regular episodes and specials).
Watched and remaining depend on your progress:
- Starting from this episode: everything before your start point counts as watched.
- Checklist: you mark finished episodes; remaining follows your checks.
Real estimated watch time
Content duration can be adjusted by playback speed (effective time = runtime ÷ speed), optional intro/outro/recap skips, and optional commercial minutes. That “real watch time” drives finish-date and catch-up estimates.
How to use it
- Search — type at least two characters; pick a title from autocomplete.
- Set where you are — choose season and episode (or open advanced checklist mode).
- Read Time Left — total, watched, remaining, and the progress bar.
- Check Next episode — countdown and upcoming schedule when dates exist.
- Tune your finish plan — hours per day and playback speed; open Advanced for skips and schedules.
- Add to watchlist — saved in this browser so Dashboard and Watch Window can use it.
Watch Window & TV Forecast
Watch Window takes your available minutes and suggests the next unwatched episodes from your list, show by show. TV Forecast on the dashboard sums how many hours of new episodes land in the next 7 days — day by day — and compares that load to your weekly watch pace (backlog health).
Data source & privacy
Titles, posters, air dates, and published runtimes come from the public TVMaze API. Your watchlist and progress stay in local storage in this browser — no account is required for the core product.
FAQ
What is SeriesTime?
SeriesTime turns TV series into a time plan: how many hours you have left, what fits in the time you have tonight, and how much new content lands this week.
How is this different from multiplying episodes by average length?
Average-length math assumes every episode is the same. SeriesTime sums each episode’s published runtime when available, so finales and uneven seasons do not silently skew your total.
How do I calculate time left from mid-season?
Search the show, select your season and episode as the starting point. Time Remaining is the sum of known runtimes from that episode through the end of your filters.
What does “You Have Watched” mean?
In starting-point mode, it is the runtime of every episode before your selected start. In checklist mode, it is the runtime of episodes you marked watched.
Can I estimate a finish date?
Yes. Set hours per day and playback speed on the finish plan. Open Advanced settings for weekday/weekend schedules, start date, and an optional “finish by” target.
What is Watch Window?
Tell SeriesTime how many minutes you have. It suggests the next unwatched episodes from your watchlist that fit that window, preferring to keep a single show’s queue together.
What if an episode has no runtime?
On the show page, totals never invent a duration — missing runtimes are excluded and warned. Watch Window and Forecast may estimate with * when needed for planning.
Do I need an account?
No. Search, calculations, and planning work as a guest. Your list is remembered in this browser via local storage, and you can copy a shareable show link.
Where does the show data come from?
Metadata and published runtimes are loaded from TVMaze’s public API when you search and open a show.