Date difference
Calculates days and weeks between two calendar dates, including leap years.
Processed on this device. The files are not sent to a server.
How to use this tool
- Choose the start and end date.
- Check the difference with a sign, in days and weeks.
- Copy or download the result.
What you should know
Gregorian calendar, years 0001–9999. Counts calendar days in UTC, without hours, time zones or workdays. The initial date is not added as an additional day.
Does the time change alter the days?
No. Civil dates at midnight UTC are compared, not durations of moments in a time zone. If the end date is earlier, the result is negative.