Date Difference Calculator
Measure elapsed days, hours and seconds between two dates.
Count weekdays between dates, excluding optional holidays.
Guest results are not saved to an account. Sign in before processing to keep results in your private history for 30 days.
Load the example, adjust the values, then run the tool.
2026-09-29
Counts Monday–Friday, excludes the start date and includes the end date. Only the holidays you supply are excluded.
Choose your options, process your input, and download or copy the result.