Days of the Omer 420 - 7 weeks from the second night of Pesach to the day before Shavuot

Days of the Omer 420 / סְפִירַת הָעוֹמֶר 4180

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 4180 began on Thursday, 16 April 0420 and ended on Thursday, 4 June 0420.

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 417	TuesdayTue, March 21Mar 21	TuesdayTue, May 9May 9	16 Nisan - 5 Sivan 4177
Days of the Omer 418	SundaySun, April 8Apr 8	SundaySun, May 27May 27	16 Nisan - 5 Sivan 4178
Days of the Omer 419	ThursdayThu, March 28Mar 28	ThursdayThu, May 16May 16	16 Nisan - 5 Sivan 4179
Days of the Omer 420	ThursdayThu, April 16Apr 16	ThursdayThu, June 4Jun 4	16 Nisan - 5 Sivan 4180
Days of the Omer 421	SundaySun, April 4Apr 4	SundaySun, May 23May 23	16 Nisan - 5 Sivan 4181
Days of the Omer 422	ThursdayThu, March 24Mar 24	ThursdayThu, May 12May 12	16 Nisan - 5 Sivan 4182
Days of the Omer 423	ThursdayThu, April 13Apr 13	ThursdayThu, June 1Jun 1	16 Nisan - 5 Sivan 4183
Days of the Omer 424	TuesdayTue, April 2Apr 2	TuesdayTue, May 21May 21	16 Nisan - 5 Sivan 4184
Days of the Omer 425	SaturdaySat, March 22Mar 22	SaturdaySat, May 10May 10	16 Nisan - 5 Sivan 4185
Days of the Omer 426	ThursdayThu, April 9Apr 9	ThursdayThu, May 28May 28	16 Nisan - 5 Sivan 4186
Days of the Omer 427	TuesdayTue, March 30Mar 30	TuesdayTue, May 18May 18	16 Nisan - 5 Sivan 4187