Jewish Holidays

Sefirat HaOmer

Counting of the Omer

“Time is not a series of eternal recurrences in which nothing ever ultimately changes. Cyclical time is deeply conservative; covenantal time is profoundly revolutionary. Both find their expression in the counting of the Omer.” — Rabbi Jonathan Sacks

When is Sefirat HaOmer 2026

16 Nisan - 5 Sivan 5786


Begins: Sundown on Thursday 2 April 2026
Ends: Nightfall on Thursday 21 May 2026

Videos on Sefirat HaOmer

Ways of Counting Time: The Omer Controversy

Rabbi Sacks delivered this shiur to over 500 yeshiva and seminary students in Jerusalem on Wednesday 18th May 2016. The...

The Controversy of the Omer

In May 2013, as part of the Bnei Akiva Limmud programme, the Chief Rabbi gave a talk at the Bnei...

Read about Sefirat HaOmer

From The Archives

Essays and writings from Rabbi Sacks' extensive body of work

SHORT THOUGHTS & ACTIVITIES

Omer Calendar

On the second night of Pesach, we begin counting the Omer. For 49 consecutive days, we strive to follow the...

SHORT THOUGHTS & ACTIVITIES

Counting Towards Shavuot: Daily Omer Questions & Answers

"So when we start bringing the omer, we know we’re on our way to freedom." – Rabbi Lord Jonathan Sacks zt"l...

CONTINUING RABBI SACKS' CONVERSATION

Learning for Lag B'Omer

The ritual of counting the Omer takes place over 7 weeks (from 2nd night Pesach until Shavuot). The mitzva involves...

ARTICLES, SHIURIM

Counting Time

The human body contains 100 trillion cells. Within each cell is a nucleus. Within each nucleus is a double copy...

ARTICLES, SHIURIM

The Practical Implications of Infinity

What is mysticism? The word conjures up connotations of lofty abstraction, other-worldly meditation, abstruse speculations into the meaning of existence...

From Covenant & Conversation

The series of weekly commentary essays on the Torah by Rabbi Sacks

BEHAR • 5774, 5781

Think Long

In last week’s parsha and this there are two quite similar commands, both of which have to do with counting...

EMOR • 5768

Counting Time

The human body contains 100 trillion cells. Within each cell is a nucleus. Within each nucleus is a double copy...