To calculate the days until a certain date, such as 15-September-2025, you can follow a simple formula. First, find the current date and subtract it from the target date. This will give you the number of total days between the two dates.

Next, consider factors like leap years and differing month lengths to ensure accuracy. Take into account that leap years have an extra day in February. Then, calculate the remaining days in each month leading up to the target date.

This method of calculating days until a specific date is a practical way to plan events, track deadlines, or set goals. By breaking down the calculation into smaller steps and considering various calendar intricacies, you can precisely determine the number of days until 15-September-2025.