Days Between Dates

Days Between Dates Calculator

This days between dates calculator finds the exact number of days between any two calendar dates instantly. Enter a start date and an end date — the result appears automatically with no button needed. The total also breaks down into full weeks and remaining days, and shows the day of the week for both selected dates.

How Many Days Between Two Dates

To calculate how many days between dates, pick any two calendar dates. This days between two dates calculator works equally for past, present, and future dates. The "Include end date" checkbox adds one extra day to the count — useful when both the first and last day should be included in the total (for example, a 5-day event from Monday through Friday counts as 5, not 4).

Days Since and Days Until

Use this days since calculator to find how many days have passed since a past event, or use it as a days until calculator to count down to an upcoming date. It works for anniversary tracking, vacation planning, project deadlines, probation periods, contract durations, and any situation where you need an exact day count.

Weeks Between Dates

Alongside the total day count, the result shows the equivalent in full weeks and remaining days. This is useful for planning multi-week schedules, subscription billing periods, academic terms, or anything measured in weeks rather than raw days. The date difference calculation is based on calendar days only — no time zones or daylight saving adjustments apply.

Related Tools

For more date calculations, try the Date Calculator which also lets you add or subtract a number of days from any date. To find your exact age in years, months, and days, use the Age Calculator.