RunAsDate
RunAsDate is a lightweight and free utility developed by NirSoft that allows you to run programs using a custom date and time without changing the system clock. It’s widely used for software testing, trial extensions, and legacy application compatibility. Ideal for developers, testers, and power users, RunAsDate lets you simulate different date scenarios with precision and ease. It supports both 32-bit and 64-bit applications, making it a practical tool for controlled software environments.
Features of RunAsDate
Launch Programs with Custom Date/Time
Run applications as if the system is set to a different date or time. Perfect for testing or accessing time-limited software features.
No System Clock Modification
RunAsDate Does not change the actual system clock. Ensures stability and avoids conflicts with other apps or system processes.
Support for 32-bit and 64-bit Apps
Compatible with both architectures. Runs smoothly on most modern Windows environments without issues.
Portable Utility – No Installation Required
Just extract and run the EXE file. Ideal for users who want a clean and fast solution without installing extra tools.
Supports Command-Line Parameters
Automate tasks using custom scripts. Useful for repetitive testing workflows and developer use cases.
Multiple Instance Launch
Allows running several instances of the same app with different date/time settings. Enables parallel testing of scenarios.
Clean and Lightweight Interface
Straightforward UI with simple input fields. Designed for quick operation without complexity.
Ideal for Trial Software Testing
Commonly used by developers to test software trial behavior or time-based features without restarting the system.
Safe and Trusted Tool from NirSoft
Comes from a well-known developer of trusted Windows utilities. Widely recommended by tech communities.
Completely Free to Use
No license required. Free for personal, educational, and professional use.
Why Choose RunAsDate?
- Run any software with a custom date and time
- Does not alter your system settings or clock
- Lightweight and portable—no installation needed
- Ideal for developers and software testers
- Free and compatible with most Windows apps
System Requirements
- Operating System: Windows XP, Vista, 7, 8, 10, or 11
- Architecture Support: 32-bit and 64-bit
- Processor: 1 GHz or higher
- RAM: 256 MB minimum
- Disk Space: Less than 1 MB
- Admin Rights: Not required unless the app needs elevated access
