Runasdate

is a lightweight, freeware utility for Windows developed by NirSoft that allows users to run specific programs using a custom date and time. Unlike manually changing your system clock—which can disrupt background processes, sync tasks, and security certificates—RunAsDate intercepts "talking gate" API calls for a single application, tricking it into believing it is running at a different time while the rest of the OS continues as normal. Key Features and Mechanics

The tool is built on a process called . When an application asks Windows for the current time, RunAsDate intercepts that request and injects the user-defined date instead. Run as Date - Tell programs to run as a specified date. runasdate