The first day of September is National Wattle day.

9月1日是澳大利亚的国家金合欢日。

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The first day of New York fashion week 2001 was September 11.

2001年纽约时装周的第一天就是9月11日。

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Some American holidays have no definite date, like Labor day, which is celebrated on the first Monday of September. Other holidays like this are.

某些美国的假日并没有特定的日期，如：五一劳动节是在九月的第一个星期一庆祝，还有其他没有特定日期的假日为。

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In keeping with U.N.tradition, the U.S.president will address the General Assembly on the first day of its annual debate, on September 23.

VOA: standard.2009.09.02

The improvement in bullish sentiment comes on the heels of a strong stock market advance during the first trading day of September.

FORBES: Bulls Snort Loudly, But Bears Still Dominate

Mr Togneri was giving evidence on corporation tax along side Ben Thompson from Reform Scotland and Garry Clark from the Scottish Chambers of Commerce in the first evidence session of the day long committee on 27 September 2011.

BBC: Scotland Bill Committee part 1

Brown and Mr. Smith both teach a classroom of third graders who score at the fiftieth percentile on math and reading tests on the first day of school, in September.

NEWYORKER: Most Likely to Succeed