Non-Working Days at the International Bureau
For the purposes of computing time limits under PCT Rule 80.5, the days on which the International Bureau (IB) will not be open for the transaction of business, for the period from 1 January to 31 December 2025, will be the following:
All Saturdays and Sundays, and
1 January 2025
18 April 2025
21 April 2025
29 May 2025
9 June 2025
1 August 2025
25 December 2025
31 December 2025
Note that the days indicated above concern only the IB and not any national or regional Offices in their PCT roles. The closed dates in 2025 for other Offices, where this information has been provided to the IB, can be found on the PCT website at: