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The 90 Days Ago Calculator is a simple tool that calculates the date exactly 90 days before any given date. This is useful for various applications including project planning, legal deadlines, and personal scheduling.
The calculator uses a simple date subtraction formula:
The calculation automatically accounts for varying month lengths and leap years to provide an accurate result.
Details: Calculating dates 90 days in the past is important for tracking deadlines, monitoring project timelines, compliance with legal requirements, and personal date tracking for various purposes.
Tips: Simply enter any valid date in the input field and click calculate. The calculator will instantly show you the date that was exactly 90 days before your input date.
Q1: Does this calculator account for leap years?
A: Yes, the calculator automatically accounts for leap years and varying month lengths in its calculations.
Q2: Can I calculate business days instead of calendar days?
A: This calculator calculates calendar days. For business day calculations, you would need a different tool that excludes weekends and holidays.
Q3: What's the maximum range this calculator can handle?
A: The calculator can handle any valid date within the range supported by modern web browsers and PHP date functions.
Q4: Can I use this for future date calculations?
A: While designed for calculating past dates, you could theoretically use it for future dates by entering a future date and seeing what date was 90 days prior to that future date.
Q5: Is the time of day considered in this calculation?
A: No, this calculator works with dates only and does not consider specific times of day in its calculations.