Calculators
Business Days Calculator
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Count the working days between two dates, skipping weekends and any public holidays you add. Set which days count as your working week.
How to use this tool
Enter the start date and the end date.
Choose which days count as your working week, then add any public holidays to skip, one date at a time or with Philippines 2026 and Philippines 2027 for the national holidays. A holiday that already falls on a non-working day is not subtracted twice.
Read the number of working days, along with the weekend and holiday days that were left out.
How to use this tool
Enter the start date and the end date.
Choose which days count as your working week, then add any public holidays to skip, one date at a time or with Philippines 2026 and Philippines 2027 for the national holidays. A holiday that already falls on a non-working day is not subtracted twice.
Read the number of working days, along with the weekend and holiday days that were left out.
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Working days, counted your way.
For delivery estimates, notice periods, service-level deadlines and project plans, where only working days count.
- Your working week
- Monday to Friday by default, but any combination works: a six-day week, a four-day week, or a shift pattern with midweek days off.
- Your holidays
- Add your own public holidays, or a whole year of Philippine national holidays at once. A holiday that already falls on a non-working day is never subtracted twice.
- Both ends, your choice
- Decide whether the start and end dates themselves count, which is the usual source of an answer that is one day out.
Frequently asked questions
Are public holidays included automatically?
No, and that is deliberate. Holidays differ by country, region and sometimes by city, so you add the dates that apply to you. For the Philippines, Philippines 2026 and Philippines 2027 add that year's regular holidays and special non-working days from the President's proclamations in one tap.
What happens if a holiday falls on a weekend?
Nothing is subtracted, because that day was never a working day. Adding it changes no total, and a note tells you it was already a non-working day. Subtracting it anyway is the classic bug in this kind of calculator.
Do the start and end dates count?
Both count by default, so Monday to Friday is five working days. Switch either off if your deadline is measured from the day after, which is common for notice periods and delivery estimates.
Can I use a working week that is not Monday to Friday?
Yes. Tick whichever days apply, including weekends. Retail, hospitality and shift work often need a six-day week or midweek days off, and the summary line always says which days are being counted.
What if I enter the dates the wrong way round?
The working days between them are still counted, and a note points out that the end date comes first so you can see what happened rather than being handed a silently reversed answer.