从语法上讲，这里需要加逗号吗？

Question

On the first day of winter______ Aunty Mary goes to her holiday house in a village and stays there until the beginning of spring.

请问：On the first day of winter后面加“，”吗？为什么呢？谢谢！

Answer 1

习惯上状语位于句首，要加逗号；位于句末，不加逗号。
如：
When he came, I would tell you about it.（状语从句）
你的句子中的On the first day of winter是时间状语，所以，加逗号。

Answer 2

我觉得应该加