Calculate future or past dates from any start date
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This calculator helps you find a target date by adding or subtracting a specific time period from any start date:
The calculator automatically handles edge cases like month-end dates, leap years, and daylight saving time changes to provide accurate results.
For example, adding 1 month to January 31st will result in February 28th (or 29th in a leap year), not March 3rd, as the calculator adjusts to valid dates within the target month.
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Learn MoreThe target date calculator calculates a new date by adding or subtracting a specified number of days, weeks, months, or years from a start date. It automatically adjusts for month lengths, leap years, and other calendar variations to provide accurate results.
Yes, you can calculate both future and past dates. Use positive numbers to calculate future dates and negative numbers to calculate past dates. For example, entering -30 days will give you the date 30 days before your start date.
The calculator automatically accounts for leap years when performing date calculations. When adding or subtracting years or months that include February 29th, the calculator will correctly adjust for leap years to ensure accurate results.
The calculator uses your browser's local time zone for all calculations. All dates are calculated based on your device's current time zone settings. For consistent results across different time zones, consider using UTC dates if your application requires it.
This calculator includes all days in its calculations. For business-day-only calculations that exclude weekends and holidays, you would need a specialized business day calculator that accounts for your specific working days and holiday schedule.
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