In essence, it was precisely March 20. Tomorrow, the 21st, was the day of the equinox; the sun would disappear below the horizon for six months not counting refraction, and after its disappearance the long polar night would begin.
Want wij hadden juist den 20sten Maart, den volgenden dag was het dag- en nachtevening en zou de zon voor zes maanden onder den gezichteinder verdwijnen; dan begon de lange Poolnacht.