New Living Translation
On the first day of the festival you must proclaim an official day for holy assembly, when you do no ordinary work.

American Standard Version
On the first day shall be a holy convocation: ye shall do no servile work.

Berean Study Bible
On the first day there shall be a sacred assembly. You must not do any regular work.

Douay-Rheims Bible
The first day shall be called most solemn and most holy: you shall do no servile work therein. And seven days you shall offer holocausts to the Lord.

English Revised Version
On the first day shall be an holy convocation: ye shall do no servile work.

King James Bible
On the first day shall be an holy convocation: ye shall do no servile work therein.

World English Bible
On the first day shall be a holy convocation: you shall do no regular work.

Young's Literal Translation
on the first day is a holy convocation, ye do no servile work,

Leviticus 23:35 Additional Translations ...