72 Hour Timer

The Three-Day Sprint a 72 Hour Focus Timer engineered for complete project delivery, intensive retreats, and transformative skill acquisition.

✓Free to start

✓No credit card required

✓Takes 5 seconds

✓4.8 ⭐⭐️⭐️⭐️ on Appstore

Your Basic Timer

72:00:00

Click the ring or hit ▶ to start · Space bar works too

This is just a basic timer. Want tasks, ambient sounds, Pomodoro sessions and focus stats on your phone?Download Blazetimer 🚀

What is a 72 hour timer

The 72-hour timer represents three complete days the standard duration of a professional retreat, a product development sprint, or an intensive training camp. In sleep science, 72 hours marks the point where sleep deprivation research shows the most dramatic cognitive effects, making it also a meaningful symbol of total commitment. For project work, 72 hours of structured, intensive effort can produce outcomes that take months to achieve through standard working patterns. Whether youre tracking a multi-day project, a retreat, or a personal challenge, the 72-hour timer makes three days of commitment fully visible.

What people use a 72 hour timer for.

💻

The Three-Day Product Sprint

72 hours of structured product development design sprint, build sprint, test sprint can produce a complete working product that would take 3 months to build through standard work patterns.

🧘

Intensive Retreat

Three days of complete immersion in a single discipline meditation, writing, fitness with structured sessions, rest, and reflection produces transformative results unavailable in shorter formats.

🏔️

Ultra-Endurance Challenge

72 hours is the target completion time for the worlds most extreme endurance events: multi-day adventure races, Barkley Marathons attempts, and polar exploration stages.

🍞

Fermentation Mastery

72-hour ferments produce some of the worlds most complex flavors: slow-fermented sourdough, aged tempeh, long-brine pickles, and properly developed miso starting cultures.

🏠

The Home Renovation Sprint

Three days of focused home improvement painting, installing, organizing, and finishing can transform a room or space completely when approached with a clear plan and full commitment.

🌟

Complete Life Reset

72 hours once per year: completely disconnect from normal life and spend three days rebuilding your systems, reviewing your goals, and designing the next version of your life from scratch.

You're using a basic timer.Blazetimer is a focus system.

Stay on this page

Basic browser timer

✓Simple countdown timer
✓Start, pause, reset

🚀 Blazetimer PRO

Blazetimer PRO

✓The Full Focus System
✓Pomodoro sessions (25 min + breaks)
✓Task manager + GTD inbox
✓Ambient sounds, rain, white noise
✓Focus stats + daily charts
✓Live Activities + Dynamic Island
✓Home screen widgets
✓Works offline. Always in your pocket.

3 things a browser timer
will never do.

🎓

Live on your lock screen

Blazetimer uses iOS Live Activities to keep your timer visible on your Lock Screen and in the Dynamic Island. You never have to unlock your phone to check the time.

💼

Knows your timing

A browser timer has no idea why you're timing 2 minutes. Blazetimer ties every session to a task — so you build a real record of where your time goes.

🧠

Builds focus over time

Every session you complete in Blazetimer adds to your focus stats. You can see your daily, weekly, and monthly focus time grow.

They started with a
browser timer too.

⭐⭐⭐⭐⭐ 4.8 rating on the App Store

As someone with ADHD, this is the first productivity app that actually works for me. The visual timer and automatic breaks mean I don't have to make decisions — I just start and the app takes care of everything

Sarah KGraduate student

I've tried every Pomodoro app on the market. Blazetimer is the only one that combines a proper timer with real task management. My work output has genuinely doubled since I started using it.

Marcus TSoftware specialist

The strict mode is a game changer for me. I used to stop my timers constantly when things got difficult. Now I can't and it's taught me that I can actually push through. My exam scores have improved

Aisha OMedical student

Need a Different
Countdown?

All free. All instant. Or download the app for all of them in one place.

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You've been using a Stopwatch. Try a Focus System.

Blazetimer combines your timer, tasks, sounds, and stats in one app designed for people who actually struggle to focus.

✓Free to download

✓No ads ever

✓iPhone · iPad · Apple Watch

✓iCloud sync included