index.md

---

title: downloads.DownloadTime
slug: Mozilla/Add-ons/WebExtensions/API/downloads/DownloadTime
page-type: webextension-api-type
tags:
  - API
  - Add-ons
  - DownloadTime
  - Extensions
  - Non-standard
  - Reference
  - Type
  - WebExtensions
  - downloads
browser-compat: webextensions.api.downloads.DownloadTime

---

{{AddonSidebar()}}

The DownloadTime type of the {{WebExtAPIRef("downloads")}} API represents the time a download took to complete.

Type

A DownloadTime can be one of three different types:

• a JavaScript Date object.

• a string:

  • if this contains only digits, it's interpreted as the number of milliseconds since the UNIX epoch.

  • otherwise, it's interpreted as an ISO 8601 string.

• a number: this is interpreted as the number of milliseconds since the UNIX epoch.

Browser compatibility

{{Compat}}

{{WebExtExamples}}

Note: This API is based on Chromium's chrome.downloads API.