Days Until/From Calculator
Calculate future or past dates by adding or subtracting days from any starting date. Perfect for planning deadlines, tracking milestones, or determining historical dates.
Calculate Date
How to Use
- Choose calculation type: Select "Days From" to calculate a future date or "Days Until" to calculate a past date.
- Select starting date: Pick the date you want to calculate from (defaults to today).
- Enter number of days: Type how many days to add or subtract.
- View results: The calculator automatically updates to show the resulting date, day of week, and additional information.
Common Use Cases
📅 Project Planning
Calculate project deadlines and milestone dates from a start date.
🎂 Event Planning
Determine dates for planning tasks leading up to an event.
📝 Contract Terms
Calculate contract expiration dates or notice period deadlines.
🏥 Medical Scheduling
Track appointment dates, medication schedules, or recovery periods.
📚 Academic Deadlines
Calculate due dates for assignments, exams, and semester planning.
🏠 Rental Agreements
Determine lease end dates or notice period requirements.
Examples
Example 1: Future Date
Question: What date is 30 days from February 22, 2026?
Answer: March 24, 2026 (Monday)
Example 2: Past Date
Question: What date was 90 days before February 22, 2026?
Answer: November 24, 2025 (Monday)
Example 3: Project Timeline
Question: If a project starts on January 1, 2026, what's the date 120 days later?
Answer: May 1, 2026 (Friday)
Tips & Information
- Automatic calculation: Results update automatically as you change values.
- Leap years: The calculator automatically accounts for leap years.
- Month lengths: Different month lengths are handled correctly.
- Day of week: See which day of the week the calculated date falls on.
- Week conversion: View the number of weeks and remaining days.
- Past and future: Calculate dates in both directions from any starting point.
Frequently Asked Questions
How accurate is this calculator?
The calculator is 100% accurate and accounts for leap years, varying month lengths, and time zones.
Can I calculate business days only?
This calculator counts all calendar days. For business days, you would need to manually account for weekends and holidays.
What's the difference between "Days From" and "Days Until"?
"Days From" adds days to your starting date (future), while "Days Until" subtracts days (past).
Can I use this for historical dates?
Yes! You can select any date and calculate forward or backward from it.
Does this work across different years?
Yes, the calculator works seamlessly across years and correctly handles year boundaries.
