---
title: ChunkSpan (latest version)
description: API reference for qiskit_ibm_runtime.results.ChunkSpan in the latest version of qiskit-ibm-runtime
source: https://eu-de.quantum.cloud.ibm.com/docs/en/api/qiskit-ibm-runtime/results-chunk-span
---

# ChunkSpan

*class* `ChunkSpan(start, stop, parts)`

[GitHub](https://github.com/Qiskit/qiskit-ibm-runtime/tree/stable/0.49/qiskit_ibm_runtime/results/quantum_program.py#L47-L63)

Bases: `object`

Timing information about a single chunk of execution.

> **Note**
>
> This span may include some amount of non-circuit time.

## Attributes

**Parameters**

- **start** (*datetime.datetime*)
- **stop** (*datetime.datetime*)
- **parts** (*list\[*[*ChunkPart*](/docs/api/qiskit-ibm-runtime/results-chunk-part "qiskit_ibm_runtime.results.ChunkPart")*]*)

### start

Type: `datetime.datetime`

The start time of the execution chunk in UTC.

### stop

Type: `datetime.datetime`

The stop time of the execution chunk in UTC.

### parts

Type: `list`\[[`ChunkPart`](/docs/api/qiskit-ibm-runtime/results-chunk-part "qiskit_ibm_runtime.results.ChunkPart")]

A description of which parts of a quantum program are contained in this chunk.

## Methods