Date & time Working time
Count business days
From
To
Holidays to deduct
Business days —
Mon–Fri, both ends counted
Before holidays —
Weekend days —
Calendar days —
Note Enter both dates
Five weekdays in every seven
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Business days are the weekdays in a period, counting both end dates. Any seven consecutive days contain exactly five, so the count is close to five sevenths of the calendar days — the remainder depends on which weekday the period starts.
How to count business days
1 Enter the two dates.
2 Both ends are counted.
3 Deduct any public holidays.
4 Compare against the calendar total to see what the weekends cost.
The starting weekday changes the answer more than people expect for short periods. Ten calendar days starting on a Monday contain eight weekdays; the same ten starting on a Saturday contain six. Over long periods the difference washes out to five sevenths, but for anything under a fortnight the start day matters and a rule-of-thumb multiplication will be wrong.
Questions
The weekdays inclusive of both ends, less any public holidays.
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