> For the complete documentation index, see [llms.txt](https://docs.buildings.ability.abb/collection/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.buildings.ability.abb/collection/platform/insight-analytics/analytics-types/time-period-comparison.md).

# Time Period Comparison

(not yet implemented)

With a *Time Period comparison* analytic you can compare data from a single meter, but over multiple time periods simultaneously, for example compare the main electric incommer this month with main electric incommer last month.

To set up a *Time Period comparison*, select it from the *Analytics type* selector **\[A]**

<figure><img src="https://2013058394-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FOqGnkz52o2zVUsEGEZGk%2Fuploads%2FYs2fclajKeUSNzGIFa0A%2FInsight%20Analytics%2009%20-%20Analytics%20type%20selector%20(2).png?alt=media&amp;token=47dac07d-815d-4307-aec4-5308e9717ca3" alt=""><figcaption></figcaption></figure>

You will be prompted to select multiple Time Periods in the [*Time Period picker*](/collection/platform/insight-analytics/the-insight-analytics-interface/time-period-picker.md) **\[C]**, and the chart will show the data from the selected meter over the specified time periods as a line, bar or “donut” graph as specified by the *Chart type* selector in the the *Chart options bar* **\[B]**

{% hint style="info" %}
Custom time periods are not available in Time Period Comparison so you must choose a set time period of days, weeks, months or years.
{% endhint %}


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