Statutory Governance
Standstill Period Calculator
Calculate the mandatory 8-working-day standstill window and 30-day court challenge period under the UK Procurement Act 2023.
Standstill Period Calculator (Section 51)
Calculate Statutory 8-Working-Day Standstill Window
Under the UK Procurement Act 2023, contracting authorities must observe a mandatory standstill period of at least 8 working days starting the day after Contract Award Notice (UK6) publication.
Calculation Output8 WORKING DAYS
Standstill Expiry Date
2026-11-10
(At 23:59:59 PM following 8 clear working days)
Court Challenge Window
2026-11-28
(30-day statutory proceedings period)
Calculated excluding Saturdays, Sundays, and UK Bank Holidays.
Any formal legal challenge filed during standstill triggers automatic contract suspension.
This calculator implements the statutory 8-working-day standstill under Section 51 of the UK Procurement Act 2023. For the full lifecycle guide, notice rules (UK1–UK8), and supplier readiness audit, see the Procurement Act 2023 Compliance Roadmap.