Date Calculator: Add or Subtract Days
What date is 30, 60, or 90 days from today? Add or subtract days, weeks, months, years, or working days.
Runs in your browser. Nothing is uploaded.
Working it out…
Adding days to a date
Start from any date and add or subtract days, weeks, months, years, or working days. The result shows the full date and the weekday. Adding months keeps the day of the month where possible: 31 January plus one month is the last day of February.
Working days
Working days skip Saturdays and Sundays but not public holidays. "10 working days from today" is the usual phrasing for refunds, deliveries and official replies; if a holiday falls in between, add one more day.
Typical questions
What date is 90 days from today (visa stays, return windows), 30 days from an invoice (payment terms), 6 months from a date (probation, warranties), 2 weeks before a deadline, and the date 18 years after a birth date.
Counting backwards
Switch to subtract to find a date in the past: when was 45 days ago, or what date is 3 months before an event. The quick chips fill in common day counts.
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