DateKit
Days Between Dates Calculator
Measure exact time gaps between two moments with signed days, hours, and minutes.
How This Calculator Counts
The result is signed. If the end date is earlier than the start date, values are negative.
Use date and time values when you need partial-day precision. For day-only planning, set both times to midnight.
You get a compact duration plus decimal days, hours, and minutes so you can reuse the numbers in project plans and reminders.
Need Unix-friendly output? Use the Unix Timestamp Converter to move between human time and API timestamps.
FAQ
Does this include both start and end dates?
No. It calculates elapsed time between the two values. For inclusive day counts, add one day to the result.
Can I calculate business days only?
This tool returns calendar duration. For business-day schedules, use the result as a baseline and then remove weekends/holidays separately.
Why do I see negative values?
Negative values mean your end date is earlier than your start date, which is useful for overdue checks and lookback windows.