ZERO daes tween winter & spring
Spring start at the exakt nanosekond winter end
=21 march
Sept modern astronamers mae adjust the time up tu 1/2 dae
If yu wanna no how long winter is...3 months
If yu wanna no wen winter start...that depend on wich guvt org yu ask
The "kalander" number=21 Des
Wetherman yuze 1 Des