# Business Days Calculator

URL: https://tools.otaku-dojo.com/en/business-days-calculator
Updated: 2026-10-03

The Business Days Calculator has two modes: "Between dates" counts working days, weekend days and holidays between two dates, and "Add days" finds the date that is N business days after (or before, with a negative number) a start date. Weekends can be Saturday–Sunday or Sunday only, and you can paste public holidays or company days off to exclude them.

## How to use the Business Days Calculator

1. Choose "Between dates" or "Add days".
2. Enter a start date and either an end date or the number of business days.
3. Pick the weekend type; list public holidays or days off, one date per line.
4. The number of working days or the resulting date appears instantly.

## Specs & key facts

- **Modes**: Business days between dates; date after N business days (forward or backward)
- **Weekends**: Saturday & Sunday, or Sunday only
- **Holidays**: Paste any list of dates (YYYY-MM-DD, one per line)
- **Start date**: Choose whether to include it
- **Processing**: In your browser
- **Price**: Free, no sign-up

## Examples: Working days in October 2026

```text
2026-10-01 → 2026-10-31 | Sat & Sun off
```

→

```text
Business days: 22
Calendar days: 31 | Weekend: 9
```

## Examples: Ship 7 business days after an order

```text
Start 2026-10-05 (Monday) | add 7 business days
```

→

```text
Wednesday, October 14, 2026
```

## FAQ

### Are public holidays excluded automatically?

No, because holidays differ by country and year. Paste your country's holiday dates into "Extra days off" to exclude them.

### Should the start date be counted?

Usually yes for leave requests ("Include start date" on) and no for due dates. Toggle it to fit your case.

### Where does "7 business days" start counting?

In Add days mode, counting starts the day after the start date — an order on Monday ships 7 business days later on the following Wednesday.