files/en-us/mozilla/add-ons/webextensions/api/downloads/downloadtime/index.md
The DownloadTime type of the {{WebExtAPIRef("downloads")}} API represents the time a download took to complete.
A DownloadTime can be one of three different types:
a JavaScript Date object.
a string:
a number: this is interpreted as the number of milliseconds since the UNIX epoch.
{{WebExtExamples}}
{{Compat}}
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chrome.downloadsAPI.