How drunk should a person get on purim? Does this mitzvah begin on purim night? When is the obligation for matanas evyonim or shaloch manos begin? at night? or day?
For the degree of drunkenness a person should reach, please see this week’s article here.
Matanos La-Evyonim and Mishloach Manos should be given in the day. The mitzvah of Mishloach Manos is related to the Purim feast, and therefore must be given in the day, and some write that the mitzvah of Matanos La’evyonim must also be given in the day, because the word “days” of the Megillah refers to the daytime (please see here for sources).