Hey Elena, Indeed you use meteorological seasons and Chinese use astronomical seasons. In France (and most of "western" countries, it is split such as: Winter December 21st - March 20th Spring March 21st - June 20th Summer June 21st - September 20th Autumn September 21st - December 20th Those dates are based on Spring equinox (March 21st), Summer solstice (June 21st), Autumn equinox (September 21st) and Winter solstice (December 21st). Cheers!

In France, it's on the same months but the 20th or 21th, our winter is coming..