Age on a date
Find completed age on any selected date. You do not have to use today as the reference date.
Understand the numbers · Make life easier
Calendar days and date offsets
Find the calendar-day gap between two dates and a separate date obtained by adding or subtracting days. Weekends remain part of the calendar count.
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Days between dates
31days
Including both endpoints affects the interval. The shifted date is a separate answer; check each result's heading.
Date after adding or subtracting days2026-11-05
Calculates the interval between two dates, excluding the start date. Holidays are not excluded.
Method and scope
Without inclusive counting, subtract the start date from the end date. With both endpoints included, the same date counts as one day; the offset calculation always starts from the start date.
Read the result headings because the date gap and offset date answer different questions. A negative offset goes backwards in the calendar.
Public holidays are not excluded. This tool does not decide contractual deadlines, court deadlines or which legal counting rule applies.
What this helps you do
Find the calendar-day gap between two dates and a separate date obtained by adding or subtracting days. Weekends remain part of the calendar count.
What to enter
Start with start date, then fill the other relevant fields in the units shown. The field hints explain the required format and examples.
How the calculation works
Without inclusive counting, subtract the start date from the end date. With both endpoints included, the same date counts as one day; the offset calculation always starts from the start date.
Worked example
From 2026-11-01 to 2026-11-03 is a two-day gap or three days including both endpoints. Adding minus two days to 2026-11-01 gives 2026-10-30.
Understanding the answer
Read the result headings because the date gap and offset date answer different questions. A negative offset goes backwards in the calendar.
Scope and limitations
Public holidays are not excluded. This tool does not decide contractual deadlines, court deadlines or which legal counting rule applies.