- 720p
- 540p
- 360p

- 0.50x
- 0.75x
- 1.00x
- 1.25x
- 1.50x
- 1.75x
- 2.00x

We hope you enjoyed this lesson.

Cool lesson, huh? Share it with your friends

## About this lesson

Understand how dates work in Excel using the TODAY, YEAR, MONTH, DAY and DATE functions.

## Lesson versions

Multiple versions of this lesson are available, choose the appropriate version for you:

## Exercise files

Download the â€˜beforeâ€™ and â€˜afterâ€™ Excel workbooks from the video tutorial and try the lesson yourself.

Understanding Dates21.8 KB Understanding Dates - Completed

19.5 KB

## Quick reference

### Understanding Dates

Understanding how dates work in Excel using the TODAY, YEAR, MONTH, DAY and DATE functions.

### When to use

In order to reduce error potential, we need to try and enter data as few times as possible. Using Excel’s Date functions, we can manipulate a date in a single cell into every format of the date that we could possibly need.

### Instructions

Key Understandings

- Dates are just a number mask put on a numerical value
- Each date’s “serial number” (underlying value) is the number of days since Jan 1, 1900
- Because dates are values, we can add and subtract days from them

Formula Examples

=TODAY() |
Will return the current date, updating each time Excel recalculates. |

=YEAR(A1) |
Will extract the 4 digit year from the value in cell A1. |

=MONTH(A1) |
Will extract the 1-2 digit month from the value in cell A1. |

=DAY(A1) |
Will extract the 1-2 digit day from the value in cell A1. |

=DATE(2013,12,25) |
Will convert the value into the numerical value representing 2013-12-25. |

=TODAY()+1 |
Will return tomorrow’s date, updating each time Excel recalculates. |

Lesson notes are only available for subscribers.