May Day, also known as Labor Day, is celebrated on May 1st in China.

五一节又称劳动节，在中国于5月1日这天庆祝。

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Starting on May 1st, Beijing joined many Chinese cities by introducing a new garbage sorting policy, People's Daily reported.

据《人民日报》报道，从5月1日起，北京加入了中国许多城市的行列，推出了新的垃圾分类政策。

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According to the rule made in 2017, some kinds of dogs mustn't be kept since May 1st, 2018 in Dongying.

根据2017年制定的规定，自2018年5月1日起，东营市某些种类的狗不得饲养。

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on the last mission before the May 1st mission. This image here is a Soviet airfield with the bombers and MIGs on the ground that are blown up .

VOA: standard.2010.05.07

It's called "How Weird Street Festival". It's May 1st.

是“古怪街头艺术节”，在五月一号。

自由的时尚文化 - SpeakingMax英语口语达人

between January the 1st and the 22nd May this year, a further 166,000 people had been expelled, which is actually an increase of 42 percent in the same period from last year."

VOA: standard.2009.09.13

On May 1st Germany must also open up to eastern construction firms and industrial-cleaning companies.

ECONOMIST: Germany's labour market

Might the incumbency advantage save the Tories from the expected drubbing on May 1st?

ECONOMIST: Incumbency

The Tories lost every single seat in Scotland in the general election on May 1st.

ECONOMIST: Scottish Tories