Set a reminder on your phones for a year from now. Don't make other plans. (It's a Monday, if that helps.)
The first total solar eclipse that can only be seen from the U.S. is coming that day. And unlike most eclipses, there's a good chance that just about everyone will see it.
The path of the eclipse will run from Oregon through South Carolina, according to NASA. Those in the center of the eclipse's path could see it for more than two minutes.
Here's a map of the path from NASA.
To clarify: A solar eclipse happens when the moon passes directly in front of the sun. A lunar eclipse is when the Earth is between the Sun and moon.
The astronomical phenomenon already has a nickname: the Great American Eclipse.
While other eclipses have been visible in the U.S., this will be the only one that only the U.S. can see since 1776, USA Today reports.
And cities in the eclipse's path are already getting excited. Oregon's SolarFest will last four days...for about two minutes of eclipse. And Nashville is calling dibs on the "Music City Solar Eclipse."
Some people were planning for this even before today.
If you've never seen a total eclipse of the Sun before, here's what to expect.