The day is a unit of time and is an SI-derived unit with the symbol d.
On Earth, it is defined as 86,400 seconds and is approximately the time it takes for the earth to complete a full rotation around its axis. In the earlier days, this was measured by waiting for a cast shadow to match a template drawn from the previous day's shadow.
There are 365 days in a year and, on average, 30.42 days in a month.
The unit day has many different variants; depending on what is used to measure the Earth's rotation. In a sidereal day (a rotation with respect to a distant star or constellation, not the sun), there is actually 4 minutes less than 24 hours in a cycle.
The minute is a unit of time and is a multiple of an SI base unit with the symbol m.
There are 60 seconds in a minute. There are 60 minutes in an hour.
The Iranian scholar and polymath Al-Biruni who lived through the Islamic Golden Age (circa 1000 AD) was the first to split the hour sexagesimally (by 60) and introduced what we now understand as the “minute”.
It is understood in modern society to represent a relatively short amount of time – and is used very commonly in language to ask for a short break; hence the phrase “wait a minute”, “uno momento” and “un moment s’il vous plait”.