---
title: "Breaking: #91606 - Date/time operations in FormEngine removed"
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:breaking-91606"
source: "Changelog/11.0/Breaking-91606-DatetimeOperationsInFormEngineRemoved.rst"
typo3-version: "11.0"
typo3-major: 11
type: "breaking"
issue: 91606
forge: "https://forge.typo3.org/issues/91606"
tags: ["Backend", "JavaScript", "NotScanned", "ext:backend"]
rendered: "2026-09-20T18:31:11+00:00"
---

# Breaking: #91606 - Date/time operations in FormEngine removed {#breaking-91606}

See [forge#91606](https://forge.typo3.org/issues/91606)

## Description {#description}

FormEngine supported to add or subtract a date or time range (depending on the
field type) by appending e.g. `+5` or `-42` to the field values. These kind of
operations have been removed as they are rather unknown and clumsy to use.

## Impact {#impact}

Using these operations doesn't have any effect anymore.

## Affected Installations {#affected-installations}

All installations of TYPO3 are affected.

## Migration {#migration}

There is no migration possible.