Sounds like you are going to believe whatever you choose to believe. I will stick with what Luke had to say and accept that what ever day on the calender marked the shortest day of ‘sunlight’ was the day wherein Emanuel - God With us was conceived. John six months in the womb certainly recognized His presence. Now how did Luke know this?
It is interesting to me that events regarding Christ can be associated to 3 of the 4 days (’sunlight’) that mark season changes...
where is your evidence?