Does anyone know what day of the Gregorian calendar the first day of April in 1983 fell on?

Gregorian Calendar: Friday, May 13, 1983 Taurus Lunar Calendar: The first day of April in the Year of the Pig Four pillars: Guihai, Dingsi, Xinchou Check the horoscope hour (23-1 o'clock) Wuzi (1-3 o'clock) Ji Chou (3-5 o'clock) Gengyin (5-7 o'clock) Xinmao (7-9 o'clock) Renchen (9-11 o'clock) Guisi (11-13 o'clock) Jiawu (13-15 o'clock) Yiwei (15-17 Points) Bingshen (17-19 points) Dingyou (19-21 points) Wuxu (21-23 points) Jihai since now: 9633 days

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