# Event Time now available in Derived Properties — Amplitude Changelog

Customers can now use `Event Time` as a selectable property when building Derived Properties. This means you can create derived properties like `registration date - Event Time` to compute things like "days since registration".

Source: https://amplitude.com/en-us/releases/event-time-now-available-in-derived-properties

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[Changelog](/releases)/Event Time now available in Derived Properties

DataApr 08, 2026

# Event Time now available in Derived Properties

Customers can now use \`Event Time\` as a selectable property when building Derived Properties. This means you can create derived properties like \`registration date - Event Time\` to compute things like "days since registration".

## What it is

**What it is:** Event Time is now a selectable property in the derived property builder. You can pair it with any date-type user property to compute time differences: for instance, 'registration date - Event Time' gives you days since a user registered. Previously, Event Time wasn't available as an input here, so calculations like this required workarounds or lived outside Amplitude entirely.

**Where:** Data → Properties → Derived Properties. `Event Time` now appears as a selectable property in the derived property builder.

**Who:** All customers, including EUDC.

**When:** GA. Available now.

Release details

- Release ID

  event-time-now-available-in-derived-properties

- Shipped

  Apr 08, 2026

- Area

  Data

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