I f the government of India pushes through a new energy-saving regulation, your air conditioner's thermostat may soon refuse to go below 20 degrees Celsius, no matter how hot the weather gets.

Since 20 degrees Celsius converts to 68 degrees Fahrenheit, and 21 degrees Celsius converts to 69.8 degrees Fahrenheit — high enough that it would be rounded up to 70 by the app — 69 degrees ...