The announcement period of 1. service announcement is 60 days. After the expiration of 60 days, it shall be deemed to have been delivered. However, the service of an announcement in a foreign-related civil lawsuit shall be deemed to have been served after three months from the date of the announcement. The service of public announcement means the service of litigation documents by public announcement, which is deemed to be served after a certain period stipulated by law.

2. Legal basis: Article 92 of People's Republic of China (PRC) Civil Procedure Law.

If the addressee's whereabouts are unknown, or it cannot be served by other means specified in this section, it shall be served by public announcement. Sixty days after the announcement, it shall be deemed to have been delivered.

Two, the calculation method of the court hearing time of the summons served on the court.

1, and the period is calculated by hour, day, month and year. The start time and date of the period are not counted in the period;

2. The reason why the Civil Procedure Law of People's Republic of China (PRC) stipulates that the period is counted from the next day is largely because its legislative design is to unify the calculation scale, ensure the effectiveness of the litigants' litigation actions, and thus stabilize the civil litigation relationship. In practice, the starting point of the period starts from the next day, which can not only fully protect the litigation rights of the parties, but also facilitate the calculation and grasp of the civil litigation period, thus improving the litigation efficiency and increasing the legal effect;

3. The addressee should pay attention to the time limit of the announcement. As the service of public announcement is generally from bottom to top, the recipient may take effect without knowing it. Therefore, the person to be served should pay attention to contact the court in time and leave a number of contact methods to reduce this situation.