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Date Calculator
Calculate days between two dates, add or subtract days from a date, find what day of the week any date falls on, and count down to upcoming events. Free, instant results.
Date Calculator FAQs
How do I calculate days between two dates?
Select the "Days Between" mode, enter your Start and End dates. The calculator instantly shows the total days, weeks, months, and whether the result is in the past or future.
Can I add business days only?
The "Add/Subtract Days" mode adds or subtracts calendar days. Business day calculation (excluding weekends and holidays) depends on region — for that, you'd need a region-specific tool.
What is the most common use for a date calculator?
Common uses include: calculating project deadlines, finding when a loan or contract expires, counting down to a birthday or holiday, calculating exact age in days, and determining what day of the week a historical date fell on.