在第六号 meaning in Chinese

sixthly

Whenever there is any variation of the requirements due to main holidays , e . g . chinese new year , easter , etc . , the closing date will be published in supplement no . 6 to the government of the special administrative region gazette three weeks prior to the holiday
如遇农历新年或复活节等长假期以致截稿日期需予更改者，本署将于假期前三星期将截稿日期在第六号副刊公布。
Whenever there is any variation of the requirements due to main holidays , e . g . chinese new year , easter , etc . , the closing date will be published in supplement no . 6 to the government of the special administrative region gazette three weeks prior to the holiday
如遇农历新年或复活节等长假期以致截稿日期需予更改者，本署将于假期前三星期将截稿日期在第六号副刊公布。