Rosh Hashanah is on Rosh Chodesh. What you mean to ask is, What are the days between Rosh Hashanah and Yom Kippur. These are the Aseret Yemai Teshuvah, the Ten Days of Repentance.
Shabbat, Rosh Chodesh, Purim, Shushan Purim, Passover, Lag B'omer, Shavuot, Rosh Hashana, Yom Kippur, Sukkot, Hanukkah
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All work is allowed on Rosh Chodesh, however some women have a custom to not do certain types of housework on Rosh Chodesh. Some have the custom to not have haircuts nor cut their nails on Rosh Chodesh.
Rosh Hashana begins the evening of Sept 28, 2011.
Well think about it:we have shabbos once a week that's already about 52,we then have all the holidays: rosh hashana,yom kippur, sukkos, purim,pesach,shavuot. Also all the fast days(six i think)rosh chodesh of every month(sometimes 2 in one month).
Rosh Chodesh (ראש חודש) does not have a specific Hebrew greeting.
Rosh Hashana is the only Jewish holiday that is two days long both in and out of Israel. See the question "why does rosh hashanah last for two days"
Selichot are special prayers said during the days before Rosh Hashana. Selichot are prayers about forgiveness. These prayers are said early morning before Shacharit; the daily morning prayers. Sefardim start saying Selichot a month before Rosh Hashana; the entire month of Elul. Ashkenazim begin saying Selichot on the Sunday before Rosh Hashana; unless Rosh Hashana is on Monday or Tuesday, in which case they start saying Selichot on the Sunday 10 days before Rosh Hashana. Selichot are said until Yom Kippour. Selichot are not said on Shabbat.
Interesting !It would have to be a month without holidays, since the next Rosh Chodesh brings Hallel.How about Mar-Cheshvan ?On the other hand ... there's no Hallel on Rosh Hashana or Yom Kippur ! So that leaves the whole stretch from Rosh Chodesh Elul until Sukkot ... a month and a half ! I'll put that on the table as my guess.
Chodesh Tov means "have a good month" and is the traditional greeting used on Rosh Chodesh.
Rosh Chodesh refers to the new moon which traditionally marked the beginning of each month in the Jewish calendar.
There isn't any traditional Rosh Chodesh greeting for anyone, male or female. You could say "rosh chodesh same'ach" (ראש חודש שמח), but this sounds funny and strange.