I'd buy the mismatched time zone in the +8 areas if it weren't for the fact that you can clearly see the sunrise and sunset coincide with the proper times.
Also, as for a week or two delay, if you will remember, Lina had a bedroom full of heart-shaped balloons on Feb 14th. Lora's balloons arrived a few days later, on the day that Max returned from his trip. On top of that, I remember as a child having Christmas decorations up well into January. Taking them down by New Year is more of a recent development here in the states.