BEHOLD, THE MASTER SYSTEM OF UNITS OF THE HEGEMONY OF AMERICA

>Temperature
Fahrenheit for human reference; Celsius/Kelvin for engineering
>Distance
Miles for long distance; meters, cm, mm for short distances
>Volume
Liters for science, cups for cooking, gallons for gas
>Date
YYYY-MM-DD
24-hour clock time
>Pressure
mmHg