> ## 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 perform calculations on dates and do date math?

There are two ways to do math on dates in Parabola based on what you're trying to accomplish:

1. To find the number of days between two dates, use the **Compare dates** step. Using this step, you can either compare two date columns against each other, or compare a date column against the current date.
2. To add a number of days to a date, use the **Custom transform** step. This step can do any date computation you can think of—from comparing dates to adding a number of days to a date.

When in doubt, simply type into the **Custom transform** step what you're trying to perform and it should be able to perform any date computation you're trying to accomplish.