# Working Days Calculator Singapore: Business Days Between Dates

Count working days between two dates in Singapore, excluding weekends and MOM public holidays for 2026 and 2027, or add working days to a date.

Interactive tool: https://lookup.sg/tools/working-days-calculator

## How this works
A working day here is a Monday to Friday that is not a Singapore public holiday. Public holidays are MOM's gazetted dates for 2026 and 2027, including in-lieu Mondays when a holiday falls on a Sunday (for example Monday 9 November 2026 for Deepavali). Holidays that fall on a weekend are not counted twice.

Counting between two dates includes both the start and end dates by default; switch off "Count the start date" to start from the next day. Adding working days never counts the start date itself, so 3 working days after Thursday 5 November 2026 is Wednesday 11 November 2026.

Turn on "Saturday is a working day" for a six-day work week. Contracts, notice periods and statutory deadlines can define working days differently, so check the wording of the document you are counting for.

## FAQs
### How many working days are there in Singapore in 2026?
There are 251 working days in Singapore in 2026: 365 days minus 104 weekend days and 10 public holidays that fall on a weekday (including the in-lieu Mondays on 1 June, 10 August and 9 November).

### How many working days are there in 2027?
There are 253 working days in Singapore in 2027. Only 8 public holidays land on a weekday, because Chinese New Year falls on a weekend (with Monday 8 February off in lieu) and Labour Day and Christmas Day fall on a Saturday.

### How many working days are left in 2026?
From Monday 12 October to Thursday 31 December 2026 there are 57 working days, after skipping the Deepavali in-lieu holiday on Monday 9 November and Christmas Day on Friday 25 December.

### What is 5 working days from Christmas Eve 2026?
Five working days after Thursday 24 December 2026 is Monday 4 January 2027, because Christmas Day (25 December) and New Year's Day (1 January 2027) both fall on a Friday and are skipped.

## Sources
- [MOM: Public holidays for 2026 and 2027](https://www.mom.gov.sg/employment-practices/public-holidays)
- [MOM: Public holiday entitlement and pay](https://www.mom.gov.sg/employment-practices/public-holidays-entitlement-and-pay)

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Source: Lookup (https://lookup.sg) · Data as of October 2026 · Listings compiled from Singapore government open data (data.gov.sg), OneMap and Overture Maps places. Free listings never show contact details; contact details appear only on Lookup Verified listings.