---
title: Singapore working days calculator: add or count business days
url: https://mcp.connective-labs.com/sg/business-days
---

# Singapore working days calculator

5 working days after today (Saturday 17 October 2026) is Friday 23 October 2026. From today to 31 December 2026 there are 52 working days, counting both dates.

## Add working days to a date

URL form: `https://mcp.connective-labs.com/sg/business-days?from=YYYY-MM-DD&add=N` (N can be negative).

## Count working days between two dates

URL form: `https://mcp.connective-labs.com/sg/business-days?from=YYYY-MM-DD&to=YYYY-MM-DD`. JSON: `https://mcp.connective-labs.com/api/v1/sg/business-days` with the same parameters.

## How it counts

- Working days are Monday to Friday.
- Singapore public holidays are skipped, including the observed Monday when a holiday falls on a Sunday.
- A holiday on a Saturday changes nothing: Saturday is already not counted.
- When adding, the start date is not counted. When counting between dates, both dates are counted, and the count without the start date is also given.
- Dates from 2026-01-01 to 2027-12-31 only, the years with official MOM holiday data loaded here.
- Company-specific off days are not included.

## Source

- [Public Holidays for 2026 (Ministry of Manpower, data.gov.sg)](https://data.gov.sg/datasets/d_149b61ad0a22f61c09dc80f2df5bbec8/view)
- [Public Holidays for 2027 (Ministry of Manpower, data.gov.sg)](https://data.gov.sg/datasets/d_0ba69fc6d56717ff0bf8083c6af3bb84/view)
- [MOM public holidays page](https://www.mom.gov.sg/employment-practices/public-holidays): holiday data read 2026-10-17 13:57 SGT

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