Date Interval Calculator
The calculator allows the user to add or subtract a specified time interval in days, hours, minutes, and seconds to a specified date and return two dates: the date plus the interval and the date minus the interval.
You can use this calculator to determine important dates and deadlines, schedule appointments and events, and much more.
To use the calculator, simply enter the date and time you want to start from, and then specify the time interval you want to add or subtract. The interval can be specified in terms of days, hours, minutes, and seconds. The calculator will then display two dates: the first date will be the starting date and time plus the time interval, and the second date will be the starting date and time minus the time interval.