This article is in need of a technical review.
Non-standard
This feature is not on a current W3C standards track, but it is supported on the Firefox OS platform. Although implementations may change in the future and it is not supported widely across browsers, it is suitable for use in code dedicated to Firefox OS apps.
This API is available on Firefox OS for internal applications only.
Summary
The date property provides the date when the data usage statistics chunk was stored.
Syntax
var date = instanceOfMozNetworkData.date;
Value
A Date object.
Specifications
Not part of any specification.