How to use it
Use difference mode for signed day and workday counts, or add/subtract mode for whole calendar durations.
- Choose difference or add/subtract mode and enter valid calendar dates.
- For a difference, decide whether the end date is included.
- Optionally enter verified public holidays or other excluded dates in YYYY-MM-DD form.
- For arithmetic, enter whole years, months, weeks, and days; inspect the clamped result.
