This issue isn't typically about your actual calendar being incorrect; it’s a security handshake failure between the software and your operating system. Here is a comprehensive guide on why this happens and how to fix it. Why Does WinOLS 4.7 Show a Date Error?
Check the box to ensure the software doesn't "freeze" in time. winols 47 your system date is wrong link
Edit the .vmx file of your virtual machine and add the line: tools.syncTime = "FALSE" . 4. Update the Codemeter Firmware This issue isn't typically about your actual calendar