COVID-19 gave us hybrid work. The Iran War might give us a three-day weekend. That’s because, as Sri Lanka, the Philippines, and Pakistan move to a 4-day work week because of the war in Iran, experts say we’re the closest we’ve ever been to a permanent shorter workweek.

It started in Asia, but now major governments around the world are once again mandating that workers stay home to save on fuel and survive an energy crisis as the war in the Middle East threatens vital oil shipments through the Strait of Hormuz.

What began as an emergency measure in the developing world is now spreading globally. Sound familiar? We’ve been here before: The last time the world was forced to shift en masse—the pandemic—the changes we thought would be temporary became permanent. Hybrid work didn’t die when offices reopened. Instead, it reshaped how we work.

Now, with governments reaching for the same lever again, experts say something similar could happen with a four-day workweek. But it’ll come with major consequences for those who can’t take their jobs home, like drivers, baristas, window cleaners, pet sitters, and more.

Will an overnight emergency four-day week come to the West?