It is usually in June in the Solar calendar.

通常在阳历的六月份。

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When did you change the date of Yuandan to the solar calendar?

你们什么时候把元旦日期变成阳历的。

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In the solar calendar, May the first is International Labor Day.

阳历五月一日是国际劳动节。

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It takes place on the nearest Friday to the seventeenth day of the month of Mehr, according to the solar-agricultural calendar.

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Until then, the Catholic Church branded as heretics scientific investigators who, like the 13th-century English friar Roger Bacon, calculated that the current calendar year was over-running the solar year by a whole day every 125 years.

ECONOMIST: Late for the date