Which calendar is correct?

According to hebcal.com,

March 27, 1906 is the 1st day of the Hebrew month of Nisan, which would
be the new moon after the equinox.

April 9, 1906 is Nisan 14, Passover.

See:
http://www.hebcal.com/hebcal/?year=1....cgifields=set


Now, according to the Naval Observatory,

March *24*, 1906 represents the New moon.

See:
http://aa.usno.navy.mil/cgi-bin/aa_m...r=1906&ZZZ=END

Which is correct? Can anyone offer any explanation as to why there's
an offset between the new moon information of hebcal.com and the
Observatory?

On 23 Mar 2006 09:40:01 -0800, wrote:

According to hebcal.com,

March 27, 1906 is the 1st day of the Hebrew month of Nisan, which would
be the new moon after the equinox.

April 9, 1906 is Nisan 14, Passover.

See:
http://www.hebcal.com/hebcal/?year=1....cgifields=set


Now, according to the Naval Observatory,

March *24*, 1906 represents the New moon.

See:
http://aa.usno.navy.mil/cgi-bin/aa_m...r=1906&ZZZ=END

Which is correct? Can anyone offer any explanation as to why there's
an offset between the new moon information of hebcal.com and the
Observatory?

1906 was a long time ago. This year passover starts at sundown on
April 12.

While the hebrew calendar keeps a lunar month, it also supports leap
months, leap days, and the occasional "convenience day". This is done
so Yom Kippur does not fall on a Friday or Sunday.


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