Ideas expire. Opportunities don't wait.

Build.
Compete.
Get seen.

The monumental glowing Clockmin clock above a night city, a builder standing in front of it

Enter real building challenges, prove what you can build and earn the spotlight for your startup.

Challenge #01 opens by invitation. Theme, entry fee and start date go to the list first — no spam, no fake numbers.

72h
Build window
3 judges
5 public criteria
7 days
Homepage spotlight
Invite
Waitlist goes first

Why Clockmin

More than
just a challenge.

A competitive platform for people who build. Prove your skills, get discovered and turn your ideas into real products.

How it works
  • Real
    Challenges

    Build real projects with clear deadlines.

  • Get
    Discovered

    Winning puts your startup on the Clockmin homepage for a week.

  • Transparent
    Judging

    Five public criteria. Every score published next to every project.

  • Build
    Your Record

    Every ship counts. Your results stay on your profile.

First challenge

Challenge #01
opens by invitation.

We announce the theme, the entry fee and the exact start to the waitlist first. When the clock starts, the list is already inside.

  • Featured
    Themed briefOne clear problem, one clear deadline.
    72h
  • Hardcore
    SprintShip a usable product before the sun comes up twice.
    24h
  • Weekend
    OpenNo category. Build anything useful.
    72h
CHALLENGE · 01
Upcoming · invite only

The first clock.

72 hours
Build window
Announced by email
Theme & entry fee
7-day spotlight
Prize for #1
3 judges · 5 criteria
Public scoring

How it works

From idea
to spotlight.

Compete with your skills.
Earn attention for what you're building.

Rules & judging
  1. 01

    Join

    Get the invitation, pay the entry fee and secure your spot.

  2. 02

    Build

    Turn your idea into a real product inside the window.

  3. 03

    Submit

    Live URL, repo, short video. Before the deadline.

  4. 04

    Get ranked

    Three judges, five public criteria, every score published.

  5. 05

    Win

    Top builders earn placement and a permanent record.

  6. 06

    Spotlight

    Your startup on the Clockmin homepage for 7 days.

Winner spotlight

The spotlight
is empty.

Nobody has won yet. The first #1 gets seven days on this homepage — in front of everyone who joins after them. You can't buy this spot. You have to earn it.

Join the waitlist

The clock starts
with you.

Leave your email. When Challenge #01 opens, the invitation lands in your inbox before anywhere else.