Spring Warm Tone and Autumn Warm Tone

They say that the colors that suit you best differ depending on whether you have a warm or cool undertone, but I still don't know what type my skin tone is.

Generally, I think I'm a warm tone, but it's confusing because sometimes I hear that I look good even when I wear or apply completely cool-toned colors.

But I roughly know what warm tones and cool tones are.

How are Spring Warm Tones and Autumn Warm Tones different?