---
title: "Days between dates, or add/subtract days, weeks, months, years"
method: GET
path: "/api/date-calc"
---

# Days between dates, or add/subtract days, weeks, months, years

`GET /api/date-calc`

## Request

- Base URL: `https://www.ferntool.com`
- URL: `https://www.ferntool.com/api/date-calc`
- Auth: none declared

## Query parameters

- `start` string
- `end` string
- `include_end` string
- `add_days` string
- `add_weeks` string
- `add_months` string
- `add_years` string
- `business_days` string

## Response `200`

Result

- object

## Other responses

- `400`: Invalid input

---

[API](https://skmtc.dev/ferntool/apis/ferntool-network-api.md) · [All operations](https://skmtc.dev/ferntool/apis/ferntool-network-api/llms.txt) · [OpenAPI document](https://skmtc.dev/ferntool/apis/ferntool-network-api/revisions/0097946dd980?raw)