To find what date is 30, 60, or 90 days from today, you add that number of calendar days to today's date. The result accounts for varying month lengths and leap years automatically.
For example, if today is January 15:
- 30 days from now = February 14
- 60 days from now = March 16
- 90 days from now = April 15
Try our Add/Subtract Days Calculator to get the exact date for any number of days.
Why These Calculations Matter
Common uses for adding days to a date include:
- Payment terms: Net 30, Net 60, Net 90 invoices
- Legal deadlines: Response periods, filing windows
- Medical follow-ups: Return appointments, prescription refills
- Project planning: Milestone dates, delivery schedules
How Month Lengths Affect Results
Months have different lengths, which makes manual calculation tricky:
- January, March, May, July, August, October, December: 31 days
- April, June, September, November: 30 days
- February: 28 days (29 in leap years)
This means "30 days from January 31" lands on March 2 (or March 1 in a leap year).
Adding vs Subtracting Days
The same logic works in reverse. To find what date was 30 days ago, subtract instead of add. This is useful for:
- Tracking warranty periods
- Calculating when something started
- Working backwards from a deadline
Avoid Manual Calculation Errors
Hand-calculating dates is error-prone, especially across month boundaries or leap years. A calculator eliminates mistakes and saves time.
Put what you've learned into practice with our free tool
Open Add/Subtract Days Calculator →