Weeks Between Two Dates

The tool counts the whole days between the two dates, then divides by seven. The decimal weeks figure is that quotient rounded to two places, while whole weeks is the same division rounded down and leftover days is the remainder. For example, 50 days gives 7.14 weeks, which is 7 whole weeks and 1 leftover day.

No. The calculator uses the absolute gap between the two dates, so putting the later date first gives the same totals. Every figure is reported as a non-negative number.

No. It measures the gap from one date to the other, not the number of days you would highlight on a calendar. June 11 to June 12 is one day and roughly 0.14 weeks, not two.

A week is seven days, so any span that is not a clean multiple of seven leaves a remainder. That remainder shows up as the two-decimal figure on the Weeks card and as the Leftover days count, which always sits between 0 and 6.

Yes. The tool works with real calendar dates, so February 29 is included in the day count whenever the span crosses a leap year. That is why a full 2028 would come out to 366 days rather than 364.

No. Every calculation runs in UTC and treats each entry as a plain calendar date with no clock attached, so time zones and daylight saving shifts never move the result by a day.

The fields are native date pickers, so you choose dates from a calendar and the underlying value is stored as YYYY-MM-DD. That avoids the confusion between day-first and month-first written formats.

Yes. Pick any two dates in any order, whether both are in the past, both in the future, or one on each side of today. The tool simply measures the distance between them.

Yes. The math runs entirely in your browser and the two dates are never uploaded, so nothing about your timeline leaves your device. A public JSON API is also available if you want to automate the same calculation.