Singapore Working Day Calculator
Calculate working days and calendar days in Singapore, including gazetted public holidays and ROC 2021 court rules mode for short deadlines.
Singapore Working Day & Business Day Calculator
Calculate end dates or count days between two dates using Singapore's 11 gazetted public holidays, Sunday substitutions, and optional calendar-day mode for Employment Act notice periods. Business day conventions (Mon-Fri excluding weekends and public holidays) are built in for commercial deadlines.
Sequential mode lets you chain multi-stage timelines into one calculation for conveyancing, procurement, and project milestones.
Disclaimer: Use at your own risk and verify deadlines against the governing statute, contract, or court rules.
Designed for Legal, HR & Property Teams
Enable Court Rules Mode for ROC 2021 timelines, where periods of six days or fewer run in working days and final deadlines roll forward if they land on non-court days. Employment notice periods remain calendar-day based, so you can switch methods without redoing the math.
Use the calculator for litigation filing schedules, Employment Act notice periods, and conveyancing completion planning with a consistent audit trail of excluded days.
Singapore Working Day Calculator
Result:
Result will appear here
← Make a calculation to see results
Singapore Working Day Calculator Features & Tools
Working & Calendar Day Modes
Switch between working-day and calendar-day counting, control direction, and include or exclude boundary dates to match contract wording.
Chain up to six deadline periods so finance, due diligence, completion, and notice stages stay in sync.
Apply the ROC 2021 day-counting rules: short timelines (six days or fewer) in working days, calendar days for longer periods, with automatic roll-forward if the deadline lands on a non-court day.
Calculate notice periods in calendar days, including weekends and public holidays, with clear start/end inclusion controls.
All 11 gazetted public holidays are included, and Sunday holidays roll to Monday automatically under the Holidays Act.
Uses the standard Mon-Fri business day definition (excluding Saturdays, Sundays, and public holidays) applied in conveyancing and banking contracts.
Security of Payment Act mode counts every day except gazetted public holidays, so weekends are included in adjudication timelines.
Timeline View
Visualize the result through a colour-coded timeline showing working days, weekends, and public holidays.
Verification & Exports
Review excluded days and export the calculation parameters and audit trail to PDF.
Accurate Working Day Calculations for Singapore
Working Day Calculator Singapore handles ROC 2021 thresholds, court recess periods, and public holiday substitutions. Generate defensible timelines with exportable audit trails for litigation, conveyancing, and HR schedules.
Learn more about our methodology, data sources, and team, or explore real-world use cases.
Precise deadline calculations. No guesswork.