2 sentences

1. 我们学校九月一号开学。

   wǒ​men xué​xiào Jiǔ​yuè yī​hào kāi​xué.

   Our school year starts on September 1st.

   Source: Dong Chinese Dictionary

2. 这个项目的起始日期是五月一号。

   zhè gè xiàng​mù de qǐ​shǐ rì​qī shì Wǔ​yuè yī​hào.

   The start date for this project is May 1st.

   Source: Dong Chinese Dictionary