What date is 90 days from now?
Add or subtract days, weeks, or months from any date — useful for deadlines, warranties, and visas.
Calculate a date in the future or past
Start with any calendar date, choose whether to add or subtract, and enter the number of days. This is useful for deadlines, return windows, travel plans, renewal dates, project schedules, and questions such as "what date is 30, 60, or 90 days from now?"
The calculation uses calendar days. If you specifically need Monday-to-Friday working days, use the Business Days Calculator instead.
Why "add a month" is trickier than "add 30 days"
Adding a fixed number of days is simple arithmetic, but adding calendar months introduces a real edge case: what happens when the starting day doesn't exist in the target month? January 31st plus one month can't land on "February 31st," since February only has 28 or 29 days. This calculator resolves that by landing on the last valid day of the target month in that situation — so January 31st plus one month gives February 28th (or 29th in a leap year), rather than erroring out or silently rolling into March.
Common "days from now" questions this answers
This calculator handles the exact question behind searches like "what's 90 days from today" or "60 days before a specific date" — common for things like return and refund policy windows, notice periods required before terminating a lease or contract, quarantine or waiting periods, and project or delivery deadlines expressed as a day count from a starting point.
Related tools: Calculate business days · Find the weekday for the result · Measure the gap between dates
Frequently asked questions
How is "months" calculated?
We add or subtract full calendar months, keeping the same day of the month where possible (e.g. Jan 31 + 1 month lands on the last valid day of February).
Does this handle leap years correctly?
Yes — the calculation uses real calendar dates, so February's length in a given year is handled automatically.
When to add days instead of counting a span
Use this page when you already have one date and a signed offset: “ship 14 days after order,” “follow up in 90 days,” “go back 21 days from today.” If you have two calendar dates and want the distance between them, use days between instead.
Adding 30 days is not the same as adding one calendar month. January 31 plus 30 days lands in early March in a common year. Month-based rules belong on a different kind of calculator.
Negative offsets
Subtracting days walks backward through month lengths and leap days automatically. That is useful for “what date was 45 days before the exam.” Always keep a note of the time zone you meant; the local calendar date can differ near midnight.