No. Between Rosh Hashanah and Yom Kippur are the "10 Days of Awe". It's a period of reflection.
Rosh Hashanah is the Jewish new year and Yom Kippur is the day of atonement.
Shabbat and Yom Kippur are the two holiest holidays.
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.
Rosh Hashanah and Yom Kippur.
Rosh Hashanah, Yom Kippur
Rosh Hashanah and Yom Kippur.
High Holidays
Both.
Rosh Hashanah and Yom Kippur.
Some of them do.
Rosh Hashanah and Yom Kippur.