Days between two dates
Count whole days between two calendar dates. Use a quick action to fill this year, this month or Christmas, then calculate. For weekdays only, switch to working days.
Pick a start and end date. The result can be negative if the end date is earlier. Nothing personal is stored — we only record that this tool was used.
0 calendar days
12 September 2026 to 12 September 2026 is 0 days (0 weeks and 0 days).
How this works
The count is the number of midnights between the two dates in Europe/London. It can be negative if the end date is earlier. It does not skip weekends — use working days for that.
Other tools: Add or subtract days Working days calculator Days until a date Week number calculator Leap year checker Age calculator Date-to-date countdown Unix timestamp converter