📅 Date Add Calculator
Add or subtract days, weeks, months, or years from any date. Get the new date and weekday instantly.
Result
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📖 How It Works
Pick a start date, enter the amount (positive to add, negative to subtract), and choose the unit. Supports days, weeks, months, and years. Month addition handles end-of-month boundaries automatically (e.g., Jan 31 + 1 month = Feb 28/29). Use the preset buttons for quick selections.