Tapdancer estimated that Spring would occur roughly two weeks earlier. And then proceeded to dismiss it as "trivial".
But it also implies the the autumn will end two weeks later, and the summer will start earlier and finish later by some amount.
Four weeks out of 52 is nearly 8%. You can't dismiss that by just saying it's taken 100 years to occur.
Surely it's obvious that on average the weather is going to be warmer and probably wilder because of the extra heat in the atmosphere? And bushfires more likely beacause of extra fuel load (extra CO2 and heat), plus less mild weather?
