Select a base date, enter target days, and click calculate. Past dates are displayed as D+, future dates as D-, and it shows time differences in days/hours/minutes/seconds in real-time.

Target days are used to calculate how many days after the base date. For example, entering 100 will automatically calculate the date 100 days from the base date.

Yes, calculation results update in real-time. The date difference is automatically refreshed every second in days, hours, minutes, and seconds for accurate countdown.