Is it Adar yet?
"When Adar begins we increase rejoicing," goes the halacha. But, with Adar I starting today, a pressing question arises: In a Jewish leap year, does this apply to both months of Adar, or only to Adar II, the month when Purim is celebrated?
In other words, is it really Adar yet, or is only next month considered Adar for halachic purposes?
Rav Yair Kahn of Yeshivat Har Etzion addresses the question in this essay.
The summary: According to most opinions, you can start partying now. (Okay, I'm paraphrasing a bit.)
Chodesh Tov. Really!