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

# Last Modified Time

> Automatically record when a record was last edited.

The **Last Modified Time** field automatically records when a record was last edited. It can track all fields or only selected fields, which makes it useful for recent updates, inactive data cleanup, and collaboration review.

## Use Cases

| Scenario                | Good for                                                                         |
| ----------------------- | -------------------------------------------------------------------------------- |
| Recent updates          | Sort by Last Modified Time to see records that changed recently                  |
| Selected field tracking | Update the time only when key fields change, reducing noise from unrelated edits |
| Inactive data cleanup   | Filter records that have not been updated for a long time                        |
| Collaboration review    | Use with Last Modified By to see the latest edit time and editor                 |

## Create and Configure

<Steps>
  <Step title="Choose the field type">
    Click the `+` icon on the right side of the table header, then choose **Last Modified Time** from the field type list.
  </Step>

  <Step title="Name the field">
    Enter a field name, such as "Last updated at" or "Recently maintained".
  </Step>

  <Step title="Set the tracking scope">
    Choose whether to track all fields or only selected fields.
  </Step>

  <Step title="Configure display format">
    Set the date format, time format, and time zone as needed.
  </Step>
</Steps>

## Tracking Options

| Option                | Description                                                     |
| --------------------- | --------------------------------------------------------------- |
| Track all fields      | Updates Last Modified Time when any field in the record changes |
| Track selected fields | Updates Last Modified Time only when selected fields change     |

## Display Format

| Setting     | Description                                                                            |
| ----------- | -------------------------------------------------------------------------------------- |
| Date format | Choose how dates are displayed, such as `2024-01-30` or `Jan 30, 2024`                 |
| Time format | Controls whether a specific time is shown, and whether it uses 12-hour or 24-hour time |
| Time zone   | Uses a fixed time zone or follows the viewer's system time zone                        |

## Common Uses

* **Find recently updated tasks**: Sort by Last Modified Time descending so changed records appear at the top.
* **Track key content changes**: Choose **Track selected fields**, then select key fields such as "Title" and "Status".
* **Clean up inactive data**: Set a filter such as `Last Modified Time` `is before` `90 days ago` to find records that have not been maintained.

## Notes

* Last Modified Time is read-only and cannot be edited by hand.
* If selected field tracking is enabled, changes to fields that are not selected do not update the time.
* If you need to record when a record was first created, use **Created Time**.