Jasper Brekelmans

Founder of Brekel.com

About

3D, XR, Depth Sensors, MoCap, Spatial Computing, Kinect, Magic Leap, HoloLens, Volumetric Video, C++, C#, Qt, OpenGL, metal, jazz

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Tastemaker

Gone streaking

Gone streaking 5

Maker History

When-DoneInstantly calculate end times and dates from any duration
Jan 2026

🎉

Joined Product HuntJanuary 26th, 2026

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4mo ago

When-Done - Instantly calculate end times and dates from any duration

"This movie is 3 hours long — will I be in bed by midnight?" "My visa expires in 45 days — what date is that?" When-Done solves this instantly 🕒 Time Calculator: Add duration to current time. Perfect for movies, cooking, battery charging 📅 Date Calculator: Find future dates for deadlines. Ideal for subscriptions, visa limits & deadlines 🔔 Alarms: Set alerts with one tap 📋 History: Save tasks with labels 🎨 Custom Themes 🔒 Private: No ads, no tracking, no subscriptions. Offline.