Days of the Omer 664 - 7 weeks from the second night of Pesach to the day before Shavuot

Days of the Omer 664 / סְפִירַת הָעוֹמֶר 4424

Warning! Results for year 1752 C.E. and earlier may be inaccurate.
Hebcal does not take into account a correction of ten days that was introduced by Pope Gregory XIII known as the Gregorian Reformation. ^[1]

7 weeks from the second night of Pesach to the day before Shavuot ㊾

Days of the Omer for Hebrew Year 4424 began on Sunday, 20 March 0664 and ended on Sunday, 8 May 0664.

Counting of the Omer (or Sefirat Ha’omer, Hebrew: ספירת העומר) is a verbal counting of each of the forty-nine days between the Jewish holidays of Passover and Shavuot. This mitzvah derives from the Torah commandment to count forty-nine days beginning from the day on which the Omer, a sacrifice containing an omer-measure of barley, was offered in the Temple in Jerusalem, up until the day before an offering of wheat was brought to the Temple on Shavuot. The Counting of the Omer begins on the second day of Passover (the 16th of Nisan) for Rabbinic Jews, and after the weekly Shabbat during Passover for Karaite Jews, and ends the day before the holiday of Shavuot, the ‘fiftieth day.’.

Read more from Judaism 101 or Wikipedia

Dates for Days of the Omer

Holiday	Starts	Ends	Hebrew Dates
Days of the Omer 661	SundaySun, March 24Mar 24	SundaySun, May 12May 12	16 Nisan - 5 Sivan 4421
Days of the Omer 662	SaturdaySat, April 12Apr 12	SaturdaySat, May 31May 31	16 Nisan - 5 Sivan 4422
Days of the Omer 663	ThursdayThu, April 2Apr 2	ThursdayThu, May 21May 21	16 Nisan - 5 Sivan 4423
Days of the Omer 664	SundaySun, March 20Mar 20	SundaySun, May 8May 8	16 Nisan - 5 Sivan 4424
Days of the Omer 665	SaturdaySat, April 8Apr 8	SaturdaySat, May 27May 27	16 Nisan - 5 Sivan 4425
Days of the Omer 666	ThursdayThu, March 29Mar 29	ThursdayThu, May 17May 17	16 Nisan - 5 Sivan 4426
Days of the Omer 667	ThursdayThu, April 18Apr 18	ThursdayThu, June 6Jun 6	16 Nisan - 5 Sivan 4427
Days of the Omer 668	SundaySun, April 5Apr 5	SundaySun, May 24May 24	16 Nisan - 5 Sivan 4428
Days of the Omer 669	ThursdayThu, March 25Mar 25	ThursdayThu, May 13May 13	16 Nisan - 5 Sivan 4429
Days of the Omer 670	ThursdayThu, April 14Apr 14	ThursdayThu, June 2Jun 2	16 Nisan - 5 Sivan 4430
Days of the Omer 671	TuesdayTue, April 4Apr 4	TuesdayTue, May 23May 23	16 Nisan - 5 Sivan 4431