→ Negative Time
Negative Time Clock Logo

Negative Time Solving Contest

It's that time of the year again! For those in the Northern Hemisphere, this is your yearly chance to solve a cube in negative time as Daylight Saving Time (DST) ends and time falls back one hour. In many European countries, DST ends on October 29th. In United States and Canada, DST ends at 2am local time on Sunday, November 5. See to check the clock change schedule in your area, and the for the exact current time.

The Contest

2017 is the 14th year of the contest. This challenge statement from 2004 by then-Caltech undergrad Tyson Mao explains its origin:

There is only one day of the year where one can leave the drudgery of Caltech academic life and sprint off for a chili burger, chili dog, and chili fries in a timely manner. A very timely manner indeed... so timely that one can actually return before he departs.

This is the way of the Negative-Time Tommy's run. On one day of the year, a little bit before the first 2 AM, Caltech students hop in their cars and make a dash for the original Tommy's in Beverly Hills for some items with a lot of chili. The goal is to simply return before you left…

I challenge all of you to take part in the negative time solving tradition. We will have a website with the one, yes only ONE scramble which you will use for this entire year…

See Macky's site for information about previous negative time contests.

The Rules

By submitting your time(s), you indicate that you are following these rules:

In addition:


View the 2017 results page.