---
title: "Baseline start/end date fields"
canonical: "https://support.appfire.com/space/BGdc/3525870229/Baseline%20start%2Fend%20date%20fields"
format: markdown
---
This field determines the start/end position of the task's baseline on the timeline. The following field types can be synchronized:

- Date Picker
- Date Time Picker

> ℹ️ The **Date Time Picker** fields are only available on Jira server versions.

Disabling synchronization with Jira is possible by selecting the '--Not Synchronized--' option.

By default, the Baseline start/end date custom fields are selected. These fields are created during the App installation.

![Screenshot of the Fields page, where you can define field mapping rules.](media://5680cb68-f536-4d07-af67-7e5e7874efd3)