> ## Documentation Index
> Fetch the complete documentation index at: https://parabola.io/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# How do I turn a date into the week number?

> The best way to turn a date into the week number is by using a **Custom transform** step.

**Steps:**

<Steps>
  <Step>
    Drag a **Custom transform** step onto the canvas
  </Step>

  <Step>
    Connect any desired data to this step
  </Step>

  <Step>
    Open the **Custom transform** step, and in the description, write "Change every value in the date column to whatever number week it is during a calendar year."
  </Step>

  <Step>
    Click *Update results*
  </Step>
</Steps>