What are the laws/customs of rosh hashana?

Answer: On Erev Rosh Hashana (Sunday) men customarily immerse in a Mikva. Hatarat Nedarim (release from vows) is said before 3 people. During the 10 Days of Repentance, several special inserts are added to the Amida; Avinu Malkeinu is said each day. The central Mitzva of RH is hearing the Shofar. Women, though not obligated, customarily participate & receive a Mitzva for hearing Shofar. The 2 days of RH are considered 1 long day; we don't prepare for the 2nd day on the 1st. A new fruit is eaten on 2nd night; women should wear new clothes or jewelry as well for Shehecheyanu. Tashlich is said on Monday (or any time through Hoshana Raba) at a body of water. Special RH foods include: Apple in honey, the head of a fish/lamb; round chala; pumpkin; leek; rimon; beets, dates. Tzom Gedalia fast (Wed) starts at 5:20 am; ends at 6:50 pm. YK candles 6:02; concludes 6:57. Shana Tova!