Ever wonder which planet is ruling this exact moment? Our free planetary hours calculator tells you instantly. Just type in your city below, and we’ll pull today’s sunrise and sunset times, run the math, and show you which planet is in charge right now, along with what that hour is best used for.

How This Planetary Hours Calculator Works

This tool uses your city’s actual sunrise and sunset times for today, then splits daylight into 12 equal segments and nighttime into 12 equal segments, exactly the way the traditional system works. It figures out which planet rules today, then cycles through the classic planetary order to land on the exact hour you’re in right now.

If you want to understand the reasoning behind the system first, check out our guide on what planetary hours are and what each one means. And if you’d rather learn to calculate them by hand instead of using this tool, we walk through the exact steps in how to calculate your planetary hours.

This calculator pulls sunrise and sunset data from sunrise-sunset.org, a public astronomical data source, so the times are accurate to your exact location.