- TIBCO BusinessEvents®
- Standard
- Instance
- PropertyAtom

# Instance.PropertyAtom.getHistoryTime()

## Signature

`long getHistoryTime(PropertyAtom propertyAtom, int idx)`

## Domain

ACTION, CONDITION, QUERY, BUI

## Description

Get the history timestamp of this PropertyAtom value for a given index. Returns 0 if the index has not yet been used.

## Parameters

Name | Type | Description
--- | --- | ---
`propertyAtom` | `PropertyAtom` | The property atom to get the timestamp for.
`idx` | `Index` | of the value timestamp is needed for.

## Returns

Type | Description
--- | ---
`long` | the timestamp of the PropertyAtom.

## Cautions

none