Date Calculator for Days and Legal Time Windows
Count days between dates, add periods and model NSW legal time windows.
Calculate a date or period
Excluded weekends and holidays
| Date | Reason |
|---|
Count Days or Add a Period
YYYY-MM-DD, one per line; demands only. Court closures are not automatically holidays.
The elapsed period between two dates excludes the start and includes the end. Including both boundaries adds one day. Excluding both removes one day from the elapsed period.
The default example runs from 5 January 2026 to 12 January 2026. It counts seven days, or eight when both dates are included. For identical dates, both included counts one day; every other boundary choice counts zero.
Calendar-month addition preserves the day number where it exists, then clamps to the target month’s last day. Adding one month to 31 January 2024 gives 29 February 2024. Adding 30 days gives 1 March 2024.
Adding one year to 29 February 2024 gives 28 February 2025. This is a general calendar convention, separate from a legal anniversary rule.
Calculate Australian Business Days
The business-day count removes Saturday, Sunday and full-day holidays from the selected calendar. The excluded-date table names every removed day and its reason.
The Fair Work Ombudsman’s state and territory holiday lists supply the 2026 dates. The NSW Government calendar also supplies NSW dates for 2027.
Queensland’s calendar omits the Brisbane show holiday. Tasmania’s omits regional regattas, show days and the public-service Easter Tuesday holiday. Add applicable local dates explicitly. The Victorian calendar assumes Melbourne Cup Day applies; a location with a substitute date needs a different calendar.
NT, Queensland and South Australian part-day holidays do not remove a whole day here. NSW’s August bank holiday is excluded only in statutory-demand mode, because it is not a general public holiday.
From 2 April 2026 to 7 April 2026, excluding the start and including the end, NSW has one business day. Good Friday and Easter Monday are holidays; the intervening Saturday and Sunday are weekends.
Calendars cover 2026, plus NSW in 2027. Saturday and Sunday are weekends. Regional and part-day holidays are excluded from the bundled calendars. VIC includes Melbourne Cup Day; WA uses the standard King’s Birthday date.
Model a Legal Due Date
A legal due date starts with the applicable rule and its triggering event. Counting business days does not select either. Supported legal modes use NSW assumptions and an established service or death date in 2026 or 2027.
Statutory-demand mode applies the Corporations Act’s 21-day period and section 105 counting rules. It excludes the service day, counts intervening calendar days and moves a final non-business day to the next business day.
Choose NSW only when NSW is the place where the act must or may be done. Registry opening hours, court vacations and electronic filing cut-offs do not create automatic extensions in this model.
County Court subpoena dates
County Court of Victoria, civil. Five business days before the production date. Compliance day excluded; Melbourne weekends, public holidays and entered court closures excluded. Civil counting also excludes Easter Tuesday under rule 3.08. Ordinary rule, no different court order.
For civil production on 13 April 2026, the last service date is 1 April 2026. The five counted days are 10, 9, 8, 2 and 1 April. The intervening Easter holidays, weekends and Easter Tuesday court-office closure are excluded. Interstate service gives 30 March 2026.
The ordinary service model supports County Court civil Forms 42A, 42B and 42C and criminal Forms 1D, 1E and 1EA. Use the earliest required compliance date. Civil compliance uses the trial date or another ordered date. Criminal attendance uses the trial, circuit commencement or appeal date; production-only Form 1E allows a suitable nominated date.
County Court civil rules 3.01 and 42.03 govern the ordinary five-day count. Criminal rule 1.09 applies Order 42. The Court’s criminal subpoena guide confirms five business days in Victoria and 14 days interstate.
For interstate service, section 30 of the Service and Execution of Process Act requires 14 calendar days unless shorter service is allowed. The calculator applies no automatic extension when that service date falls on a weekend. Service, conduct money and any required notice remain separate requirements. Civil service after 4 pm is deemed to occur on the next open court day under rule 3.05.
This model uses Melbourne court-office assumptions and the 2026 Victorian full-day holiday calendar. Civil counting automatically excludes Easter Tuesday under rule 3.08. Criminal counting uses the separate criminal subpoena guide and stops when a Victorian service period spans Easter Tuesday. Add any further actual court closures. Calculations crossing the year-end vacation stop. A different court order, overseas service, a person in prison required to attend or civil Form 42AA requires a separate calculation.
Subpoena excluded days
| Date | Reason |
|---|---|
| 3 Apr 2026 | Good Friday |
| 4 Apr 2026 | Weekend; Easter Saturday |
| 5 Apr 2026 | Weekend; Easter Sunday |
| 6 Apr 2026 | Easter Monday |
| 7 Apr 2026 | Easter Tuesday court-office closure |
| 11 Apr 2026 | Weekend |
| 12 Apr 2026 | Weekend |
Check Estate and Insolvency Windows
NSW family-provision mode shows the unadjusted 12-month anniversary of death under section 58 of the Succession Act. It does not decide an extension or apply court filing-day adjustments.
Statutory-demand mode calculates the period for a section 459G application to set aside a company demand. Within that period, the application and supporting affidavit must be filed and served.
Corporations Act sections 9, 105 and 459G set the period and filing/service requirements. The Federal Court statutory-demand guide explains the procedure.
The Legal Aid NSW family-provision guide explains the death-based period. Extensions and disputed service require separate legal assessment. Use the will-contest time limits guide for the event and extension questions.
A relation-back day depends on the insolvency events that occurred. This calculator does not identify that day. The relation-back day guide explains how to establish the relevant event before doing date arithmetic.
Verify the Calculated Period
Confirm the event from the source record, select the rule and compare the raw period end with any adjusted final day. In statutory-demand mode, only the final non-business days move the date.
Unsupported holiday years stop the business or statutory-demand calculation. Other jurisdictions stop estate and demand calculations. Unsupported courts or subpoena periods also stop their calculation. A missing or disputed trigger also stops it, and previous figures become unavailable.
The family-provision mode refuses leap-day deaths because their legal anniversary needs separate counting analysis. General calendar addition remains available. Preserve the triggering record and the selected counting basis with your matter’s deadline calculation.