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# Date.prototype.getUTCDay()

The **`getUTCDay()`** method returns the day of the week in the
specified date according to universal time, where 0 represents Sunday.

## Syntax

```js
getUTCDay()
```

### Return value

A number.
If the `Date` object represents a valid date, an integer number corresponding to the day
of the week for the given date, according to universal time: 0 for Sunday, 1 for Monday,
2 for Tuesday, and so on.
Otherwise, [`NaN`](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number/NaN)
if the `Date` object doesn't represent a valid date.
