# Does a date fall on a weekend?

In this article, I'll explain how you can find out if a date falls on a weekend or not. For this we use a simple formula.

For convenience, you can use the sample file. This can be downloaded at the bottom of this page.

## The formula

To find out whether a date falls on a weekend, we use the formula/function below.

`WEEKDAY(serial_number;[type_number])`

The function is structured as follows with the following arguments:

**serial number**. This argument is required and must be a serial number. A date in a cell that is formatted as text therefore does not work. You will first have to convert this to a date format. A date that is formatted as a date is seen in Excel as a serial number and therefore works.**type_number**. This argument is optional and determines the result. With this argument you can indicate what the first day of the week is.

### Results WEEKDAY()

wdt_ID | type_result | Result |
---|---|---|

1 | 1 | A number from 1 (Sunday) to 7 (Saturday). This corresponds to previous versions of Microsoft Excel. |

2 | 2 | A number from 1 (Monday) to 7 (Sunday). |

3 | 3 | A number from 0 (Monday) to 6 (Sunday). |

4 | 11 | A number from 1 (Monday) to 7 (Sunday). |

5 | 12 | A number from 1 (Tuesday) to 7 (Monday). |

6 | 13 | A number from 1 (Wednesday) to 7 (Tuesday). |

7 | 14 | A number from 1 (Thurs) to 7 (Wednesday). |

8 | 15 | A number from 1 (Friday) to 7 (Thursday). |

9 | 16 | A number from 1 (Saturday) to 7 (Friday). |

10 | 17 | A number from 1 (Sunday) to 7 (Saturday). |

## How does the formula work

At the top formula **=WEEKDAY(B1)** Sunday is the first day of the week with the value 1. October 28, 2022 falls on a Friday. If one starts counting at 1 with Sunday, Friday is the sixth day.

In the middle formula **=WEEKDAY(B1;2)** Monday is the first day of the week with the value 1. In this case, Friday is the fifth day.

In the bottom formula =WEEKDAY(B1;3) Monday is the first day of the month, but has 0 as its initial value. If you start counting on Monday with 0, Friday is the fourth day.

## Determine the weekend

To determine whether a date falls on a weekend, we can use the function **=WEEKDAY()** combine with the **OR()** function.

The formula then becomes:

`=OR(WEEKDAY(DATE)={1;7})`

If the date falls on a Sunday (1), the first condition is met and is then true. If the date falls on a Saturday (7), then the second condition is met and is therefore true. If one of the two conditions **WHERE** is, the result is also **WHERE**. If both conditions **FALSE** will be the outcome **FALSE** to be.

## Downloads

If you can't figure it out with the above guide alone, download the sample file or ask a question by leaving a message.

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