Date Calculator (Terminus)
Add or subtract days, weeks, months, and years from any date.
Result
New Date
-
Total Duration
-
About the Date Calculator
The Date Calculator is a versatile tool for anyone who needs to find a future or past date based on a specific duration. It's perfect for calculating project deadlines, contract end dates (terminus dates), birthdays, anniversaries, or any event. Simply enter a start date, specify a duration to add or subtract, and get an accurate result instantly.
Formula Explained
This calculator works by taking your start date and sequentially applying the duration you've entered. It correctly handles the varying number of days in each month and automatically accounts for leap years to ensure the final date is accurate. The total duration between the start and end dates is also calculated and displayed for your convenience.
How to Get Better Results
For the most accurate planning, consider these tips:
Double-Check Your Start Date
Ensure the initial date is correct before adding or subtracting time.
Use a Combination of Units
You can enter values for days, weeks, months, and years simultaneously for complex calculations.
Frequently Asked Questions
What is a terminus date? →
A terminus date is simply an end date. The term is often used in legal or contractual contexts to specify a deadline. This calculator helps you find the terminus date by adding a specific duration to a starting date.
How do you calculate 90 days from a date? →
To calculate 90 days from a date, you can use this tool. Simply select your start date, choose the 'Add' operation, enter '90' into the 'Days' field, and leave the other duration fields as zero. The calculator will instantly show you the resulting date.
Does this calculator account for leap years? →
Yes, the calculator automatically accounts for leap years (when February has 29 days) in its calculations. When you add or subtract a duration that crosses over a leap day, the final date will be accurate.
Can I calculate business days? →
Currently, this tool calculates based on calendar days, not business days. Business day calculations are more complex as they require excluding weekends and public holidays, which vary by region.
What are some common uses for a date calculator? →
Common uses include: calculating project deadlines (e.g., 60 days from today), determining contract end dates, finding out the date of a future anniversary or birthday, and calculating a date in the past for historical reference.