WhenMathDate Midpoint Calculator
Find the date exactly halfway between two dates, such as the midpoint of a project phase or a semester.
Worked example
From January 1 to January 11, 2027, the range spans 10 elapsed days. Halfway through is 5 days after the start: January 6. When the span has an odd number of days, the exact midpoint falls at noon between two dates rather than on either one; the calculator states this rather than silently rounding to one side.
Limitations
This is calendar arithmetic only; it does not account for a time zone unless you use a range where time of day matters.
Frequently asked questions
- What happens with an odd-length range?
- The result states that the exact midpoint falls at noon between two calendar dates, rather than picking one arbitrarily.