When-Done

Instantly calculate end times and dates from any duration.
Know when you're done.

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No Subscriptions. No Ads. No Tracking. Ever.

Android

iOS & MacOS

Windows 10/11

"This movie is 3 hours and 17 minutes long. If I start it now, will I be in bed by midnight?"

"My render takes 4.5 hours. Will it be ready before the client meeting?"

"This subscription expires in 45 days. What exact date is that?"

We have all faced these scenarios. Adding hours and minutes to the current time—or calculating dates weeks in the future—is surprisingly frustrating. When-Done solves this instantly.

It is a clean, beautiful utility designed to answer one specific question: If I start now, when does it finish?

Whether you are a gamer, an editor, a cook, or just trying to manage your schedule, this app visualizes the finish line for you.

Key Features

🕒 Time Calculator

Input a duration (hours & minutes) and instantly see the "When-Done" time based on the current clock. Perfect for:

Movies & TV shows
Cooking and baking times
Battery charging cycles
File downloads and uploads
3D rendering or video exporting

📅 Days Calculator

Input a number of days to see the exact future date. Great for:

Subscription expirations
Visa or passport limitations
Project milestones and deadlines

🎨 Customizable Themes

Dark/Light mode, custom colors, and visual effects like Glow and Outline.

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🔔 Integrated Alarms

Don't just calculate it—set it. With a single tap, set a system alarm for the calculated time so you never miss the moment.

📋 History & Notes

Save calculations to your History with custom labels (like "Passport Expires") to keep track of multiple running tasks.

🔒 PRIVATE, CLEAN & OFFLINE

No Ads: Completely distraction-free.
No Data Collection: We do not track you.
No Cloud: History stored locally on device.
No Subscriptions: No hidden fees.

Stop guessing. Know exactly When-Done.