Can you swim during the ten days between rosh hashana and Yom Kippur?
Yes, but it's only six days, since swimming isn't permitted for Jews on four of the ten days. Those four are the two days of Rosh Hashanah, Shabbat, and Yom Kippur.
Yom Kipper (the day of atonement when Jews fast all day) is always in the 10th of the month of Tishre. That would correspond to: Saturday 22 September 2007
Thursday 9 October 2008
Monday 28 September 2009
Saturday 18 September 2010
Saturday 8 October 2011
Wednesday 26 September 2012
Saturday 14 September 2013
Saturday 4 October 2014
Wednesday 23 September 2015
Wednesday 12 October 2016
Saturday 30 September 2017
Wednesday 19 September 2018
Wednesday 9 October 2019
Monday 28 September 2020
Thursday 16 September 2021
Wednesday 5 October 2022
Monday 25 September 2023
Saturday 12 October 2024
Thursday 2 October 2025
Monday 21 September 2026 Note however that Jewish days always begin at sundown in the day before. So while Yom Kiper will be on Thursday 9 October 2008, it will start on Wednesday 8 October 2008 at sunset and on 25 hours later at nightfall. Read all about Yom Kiper at http://www.answers.com/topic/yom-kippur