To use these dates you must subtract 21 days to find out the date to SET the eggs.

January 7-8, 16-17, 25-26.
February 4-5, 12-13, 21-22.
March 2-3, 11-12, 19-20, 29-30
April 7-8, 16-17, 26-27
May 3-4, 7-8, 16-17, 26-27, 30-31
June 1-2, 9-10-11, 19-20, 28-29.
July 6-8, 16-18, 25-27.
August 3-4, 13-14, 22-23, 30-31
September 1, 9-10,18-19, 27-28.
October 6-7-8, 15-16, 24-25.
November 3-4,12-13,20-21, 30
December 1-2, 9-11, 17-19, 27-29.

Also, based on the fruitful dates under the waxing moon, the very best dates to hatch on are only about twice a month.

Those dates are:
Jan 25-26
Feb 4-5, 21-22
Mar 2-3, 29-30
Apr 26-27
May 3-4, 26-27, 30-31
Jun 1-2, 19-20, 28-29
Jul 25-26
Aug 22-23, 30-31
Sep 1, 18-19, 27-28
Oct 15-16, 24-25
Nov 12-13, 20-21
Dec 17-18, 27-28