This article describes the support boundaries for the Windows Time service (W32Time) in environments that require highly accurate and stable system time. Applies to: Windows Server 2022, Windows Server 2019, Windows Server 2016, Windows 10 version 1607 or later, Azure Stack HCI, versions 21H2 and 20H2 High accuracy support for Windows 8.1 and 2012 R2 (or prior) Earlier versions of Windows (Prior