• How do you calculate the secular date of Pesach or Rosh Hashanah?
• How many types of 19-year cycles are there?
• In which case does a boy become a bar mitzvah after his younger friend?
• When has Tu B’Shevat fallen on five different weekdays in five consecutive years?
• Why is Birkas Hachamah never said on the same Jewish date twice in a row but is often said on the same date eighty-four years later?

Using his extensive research and sophisticated computer models, senior British statistician Michael Baxter gives readers unparalleled insights into the amazing Jewish calendar—and its enormous impact on our lives.

“The Jewish calendar is a very important topic that few people really understand…We owe a great debt of gratitude to Rabbi Michael Baxter for shedding light on this obscure area. He has written an outstanding book.”

Rabbi Yitzchak Breitowitz

About the author:

Michael Baxter was born and lives in London, England. He is a British chartered statistician, a Fellow of the Royal Statistical Society, and a past chairman of its Official Statistics Section. He is a member of the National Statistics Advisory Group and of the Census and Geodemographics Group advising the Market Research Society. He is also a Fellow of the Royal Astronomical Society. He has been a member of the Council of the United Synagogue and a warden of Woodside Park Synagogue, London.