Omer Counting Calendar. This calendar is shown below. Most messianic and hebrew roots believers in yeshua begin the count on the first day of the week, the day after the weekly sabbath during the feast of unleavened bread.

You shall count seven full weeks from the day after the sabbath, from the day that you brought the sheaf (omer) of the wave offering. Omer calendar jewish communities formally count each day starting on the second night of pesach — our retelling of exodus from slavery in egypt — for the seven weeks until shavuot.