Published on September 25, 2025 8:29 AM GMT

On September 26th, 1983, the world was nearly destroyed by nuclear war. That day is Petrov Day, named for the man who averted it. Petrov Day is a yearly event commemorating the anniversary of the Petrov incident. It consists of an approximately one-hour long ritual with readings and symbolic actions with candles and other props.

I'll be hosting a Petrov Day ceremony at Lighthaven on Saturday, Sep 27 (this is the day after Petrov Day proper). We'll use the ritual booklet hosted here; I will bring all of the booklets and materials.

This will be at Lighthaven, 2740 Telegaph Ave Berkeley, CA. The ritual part will start at 7pm. You can arrive as early as 6pm; you must arrive by 7 or we may start without you and you'll miss it. When you arrive, call me (607-339-5552) to be let in.