Get Windows uptime from Command Prompt

September 30, 2025

Get Windows - or any operating system with PowerShell - uptime by cmdlet Get-Uptime

Get-Uptime

To get system uptime from Python without forking a new process, see the uptime Python module.

Caution: in Java, ManagementFactory.getRuntimeMXBean().getUptime() returns uptime of the JVM process, not the OS.