AngleSharp by Florian Rappl

<PackageReference Include="AngleSharp" Version="0.6.0" />

.NET API 844,288 bytes

HTMLTimeElement

sealed class HTMLTimeElement : HTMLElement, IHtmlTimeElement, IHtmlElement, IElement, INode, IEventTarget, IParentNode, IChildNode, IElementCssInlineStyle

public string DateTime { get; set; }