How date differences are calculated

Compare two calendar dates in days and weeks, or start from a date and move forward or backward by a chosen number of days.

Steps

1. Enter the start and end dates to measure the gap.
2. Use Goal mode to add or subtract days from a starting date.
3. Check whether your situation needs calendar days or working days; they are different.

Formula / method

Elapsed days are calculated from normalized calendar dates to avoid clock and daylight-saving-time shifts.