> For the complete documentation index, see [llms.txt](https://docs.ladybug.tools/ladybug-primer/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ladybug.tools/ladybug-primer/components/1_analyzedata/time_interval_operation.md).

# Time Interval Operation

![](/files/-MihikYsPND3FSQiPJXI)

![](/files/-MihikYtS_NykCGO2m3k) - [\[source code\]](https://github.com/ladybug-tools/ladybug-grasshopper/blob/master/ladybug_grasshopper/src//LB%20Time%20Interval%20Operation.py)

Perform time interval operations on an hourly data collection.

This includes operations like: - Average - Total - Percentile

These actions can be performed over the following time intervals: - Daily - Monthly - Monthly per Hour

### Inputs

* **data \[Required]**

A Ladybug data collection object.

* **operation**

Text indicating the operation that should be performed on the input hourly data. Such text must be one of the following:

```
- average

- total

- [a number between 0 and 100]
```

In the case of the last option, the number will be interpreted as a percentile of the data over the time period. For example, inputting 75 will return the 75th percentile value of each day/month/hour, inputting 0 will give the minimum value of each day/month/hour and inputting 100 will give the max value of each day/month/hour. Default is 'average' if the input data type is not cumulative and 'total' if the data type is cumulative.

### Outputs

* **daily**

Daily data collection derived from the input \_data and *operation*.

* **monthly**

Monthly data collection derived from the input \_data and *operation*.

* **mon\_per\_hr**

Monthly Per Hour data collection derived from the input \_data and *operation*.