for Manipulating the System Date to Evaluate the Effect on Applications

ASG-ValidDate is a system programmer’s tool that manipulates the system date and/or time. ASG-ValidDate works at the operating system level and requires no changes to the applications it serves. It monitors date requests for configured users or tasks, allowing requests for non-configured elements to pass through freely.

When it detects a service call for a pre-configured user or task, it intercepts the operating system’s response and modifies the result according to the configuration before passing it on to the application. It can return a fixed date, as well as add or subtract a pre-set value from the date and/or time response.


  • Enables system programmers to set fixed past or future dates through flexible date manipulation

  • Monitors date requests for configured users or tasks and intercepts and manipulates system dates without making changes to applications

  • Tracks tested components with logging facility

  • Supports multiple languages and environments