Moon Tables 2005-2015

Times are Eastern Standard Time (GMT -5 hours), and are calculated for the longitude and latitude of New York City. Note that they have not been corrected for Daylight Saving Time; at the time of this writing, that means adding an hour for those times between the first Sunday in April and the third Sunday in October.

The reason why I have not made this correction (as I did in my earlier moon tables) is that Daylight Savings Time may change in 2007; then you'd add an hour between the second Sunday in March and the first Sunday in November. Since I've grown weary of maintaining and tweaking this page, I'm going to let you do the math.

After these tables, I have some notes on blue moons and how to perform your own astronomical calculations.

                             2005
        Full Moon                              New Moon
  Tue, Jan 25, 2005   5:33 AM     Tue, Feb  8, 2005   5:30 PM
  Wed, Feb 23, 2005  11:55 PM     Thu, Mar 10, 2005   4:13 AM
  Fri, Mar 25, 2005   4:00 PM     Fri, Apr  8, 2005   3:35 PM
  Sun, Apr 24, 2005   5:09 AM     Sun, May  8, 2005   3:48 AM
  Mon, May 23, 2005   3:21 PM     Mon, Jun  6, 2005   4:57 PM
  Tue, Jun 21, 2005  11:16 PM     Wed, Jul  6, 2005   7:04 AM
  Thu, Jul 21, 2005   6:02 AM     Thu, Aug  4, 2005  10:05 PM
  Fri, Aug 19, 2005  12:55 PM     Sat, Sep  3, 2005   1:45 PM
  Sat, Sep 17, 2005   9:01 PM     Mon, Oct  3, 2005   5:27 AM
  Mon, Oct 17, 2005   7:13 AM     Tue, Nov  1, 2005   8:23 PM
  Tue, Nov 15, 2005   7:57 PM     Thu, Dec  1, 2005  10:00 AM
  Thu, Dec 15, 2005  11:15 AM     Fri, Dec 30, 2005  10:11 PM

                             2006
        Full Moon                              New Moon
  Sat, Jan 14, 2006   4:48 AM     Sun, Jan 29, 2006   9:15 AM
  Sun, Feb 12, 2006  11:44 PM     Mon, Feb 27, 2006   7:32 PM
  Tue, Mar 14, 2006   6:36 PM     Wed, Mar 29, 2006   5:17 AM
  Thu, Apr 13, 2006  11:41 AM     Thu, Apr 27, 2006   2:46 PM
  Sat, May 13, 2006   1:53 AM     Sat, May 27, 2006  12:27 AM
  Sun, Jun 11, 2006   1:05 PM     Sun, Jun 25, 2006  11:06 AM
  Mon, Jul 10, 2006  10:04 PM     Mon, Jul 24, 2006  11:31 PM
  Wed, Aug  9, 2006   5:56 AM     Wed, Aug 23, 2006   2:10 PM
  Thu, Sep  7, 2006   1:44 PM     Fri, Sep 22, 2006   6:45 AM
  Fri, Oct  6, 2006  10:14 PM     Sun, Oct 22, 2006  12:14 AM
  Sun, Nov  5, 2006   7:59 AM     Mon, Nov 20, 2006   5:18 PM
  Mon, Dec  4, 2006   7:25 PM     Wed, Dec 20, 2006   9:01 AM

                             2007
        Full Moon                              New Moon
  Wed, Jan  3, 2007   8:57 AM     Thu, Jan 18, 2007  11:01 PM
  Fri, Feb  2, 2007  12:45 AM     Sat, Feb 17, 2007  11:15 AM
  Sat, Mar  3, 2007   6:17 PM     Sun, Mar 18, 2007   9:44 PM
  Mon, Apr  2, 2007  12:15 PM     Tue, Apr 17, 2007   6:37 AM
  Wed, May  2, 2007   5:10 AM     Wed, May 16, 2007   2:28 PM
  Thu, May 31, 2007   8:05 PM     Thu, Jun 14, 2007  10:14 PM
  Sat, Jun 30, 2007   8:50 AM     Sat, Jul 14, 2007   7:05 AM
  Sun, Jul 29, 2007   7:49 PM     Sun, Aug 12, 2007   6:03 PM
  Tue, Aug 28, 2007   5:37 AM     Tue, Sep 11, 2007   7:45 AM
  Wed, Sep 26, 2007   2:47 PM     Thu, Oct 11, 2007  12:01 AM
  Thu, Oct 25, 2007  11:53 PM     Fri, Nov  9, 2007   6:03 PM
  Sat, Nov 24, 2007   9:31 AM     Sun, Dec  9, 2007  12:40 PM
  Sun, Dec 23, 2007   8:16 PM     Tue, Jan  8, 2008   6:37 AM

                             2008
        Full Moon                              New Moon
  Tue, Jan 22, 2008   8:35 AM     Wed, Feb  6, 2008  10:45 PM
  Wed, Feb 20, 2008  10:30 PM     Fri, Mar  7, 2008  12:15 PM
  Fri, Mar 21, 2008   1:39 PM     Sat, Apr  5, 2008  10:56 PM
  Sun, Apr 20, 2008   5:25 AM     Mon, May  5, 2008   7:19 AM
  Mon, May 19, 2008   9:11 PM     Tue, Jun  3, 2008   2:24 PM
  Wed, Jun 18, 2008  12:31 PM     Wed, Jul  2, 2008   9:20 PM
  Fri, Jul 18, 2008   3:00 AM     Fri, Aug  1, 2008   5:14 AM
  Sat, Aug 16, 2008   4:18 PM     Sat, Aug 30, 2008   2:59 PM
  Mon, Sep 15, 2008   4:15 AM     Mon, Sep 29, 2008   3:13 AM
  Tue, Oct 14, 2008   3:04 PM     Tue, Oct 28, 2008   6:14 PM
  Thu, Nov 13, 2008   1:19 AM     Thu, Nov 27, 2008  11:55 AM
  Fri, Dec 12, 2008  11:39 AM     Sat, Dec 27, 2008   7:23 AM

                             2009
        Full Moon                              New Moon
  Sat, Jan 10, 2009  10:28 PM     Mon, Jan 26, 2009   2:55 AM
  Mon, Feb  9, 2009   9:49 AM     Tue, Feb 24, 2009   8:36 PM
  Tue, Mar 10, 2009   9:37 PM     Thu, Mar 26, 2009  11:08 AM
  Thu, Apr  9, 2009   9:55 AM     Fri, Apr 24, 2009  10:24 PM
  Fri, May  8, 2009  11:01 PM     Sun, May 24, 2009   7:12 AM
  Sun, Jun  7, 2009   1:12 PM     Mon, Jun 22, 2009   2:36 PM
  Tue, Jul  7, 2009   4:22 AM     Tue, Jul 21, 2009   9:35 PM
  Wed, Aug  5, 2009   7:55 PM     Thu, Aug 20, 2009   5:02 AM
  Fri, Sep  4, 2009  11:03 AM     Fri, Sep 18, 2009   1:44 PM
  Sun, Oct  4, 2009   1:11 AM     Sun, Oct 18, 2009  12:32 AM
  Mon, Nov  2, 2009   2:15 PM     Mon, Nov 16, 2009   2:13 PM
  Wed, Dec  2, 2009   2:32 AM     Wed, Dec 16, 2009   7:03 AM
  Thu, Dec 31, 2009   2:14 PM     Fri, Jan 15, 2010   2:12 AM

                             2010
        Full Moon                              New Moon
  Sat, Jan 30, 2010   1:18 AM     Sat, Feb 13, 2010   9:52 PM
  Sun, Feb 28, 2010  11:38 AM     Mon, Mar 15, 2010   4:03 PM
  Mon, Mar 29, 2010   9:26 PM     Wed, Apr 14, 2010   7:30 AM
  Wed, Apr 28, 2010   7:18 AM     Thu, May 13, 2010   8:05 PM
  Thu, May 27, 2010   6:07 PM     Sat, Jun 12, 2010   6:15 AM
  Sat, Jun 26, 2010   6:30 AM     Sun, Jul 11, 2010   2:41 PM
  Sun, Jul 25, 2010   8:37 PM     Mon, Aug  9, 2010  10:08 PM
  Tue, Aug 24, 2010  12:05 PM     Wed, Sep  8, 2010   5:30 AM
  Thu, Sep 23, 2010   4:18 AM     Thu, Oct  7, 2010   1:45 PM
  Fri, Oct 22, 2010   8:37 PM     Fri, Nov  5, 2010  11:52 PM
  Sun, Nov 21, 2010  12:29 PM     Sun, Dec  5, 2010  12:37 PM
  Tue, Dec 21, 2010   3:15 AM     Tue, Jan  4, 2011   4:04 AM

                             2011
        Full Moon                              New Moon
  Wed, Jan 19, 2011   4:23 PM     Wed, Feb  2, 2011   9:32 PM
  Fri, Feb 18, 2011   3:37 AM     Fri, Mar  4, 2011   3:47 PM
  Sat, Mar 19, 2011   1:11 PM     Sun, Apr  3, 2011   9:33 AM
  Sun, Apr 17, 2011   9:44 PM     Tue, May  3, 2011   1:51 AM
  Tue, May 17, 2011   6:08 AM     Wed, Jun  1, 2011   4:02 PM
  Wed, Jun 15, 2011   3:13 PM     Fri, Jul  1, 2011   3:53 AM
  Fri, Jul 15, 2011   1:39 AM     Sat, Jul 30, 2011   1:39 PM
  Sat, Aug 13, 2011   1:57 PM     Sun, Aug 28, 2011  10:04 PM
  Mon, Sep 12, 2011   4:27 AM     Tue, Sep 27, 2011   6:09 AM
  Tue, Oct 11, 2011   9:07 PM     Wed, Oct 26, 2011   2:57 PM
  Thu, Nov 10, 2011   3:17 PM     Fri, Nov 25, 2011   1:11 AM
  Sat, Dec 10, 2011   9:38 AM     Sat, Dec 24, 2011   1:08 PM

                             2012
        Full Moon                              New Moon
  Mon, Jan  9, 2012   2:32 AM     Mon, Jan 23, 2012   2:41 AM
  Tue, Feb  7, 2012   4:56 PM     Tue, Feb 21, 2012   5:37 PM
  Thu, Mar  8, 2012   4:41 AM     Thu, Mar 22, 2012   9:39 AM
  Fri, Apr  6, 2012   2:20 PM     Sat, Apr 21, 2012   2:20 AM
  Sat, May  5, 2012  10:36 PM     Sun, May 20, 2012   6:48 PM
  Mon, Jun  4, 2012   6:12 AM     Tue, Jun 19, 2012  10:02 AM
  Tue, Jul  3, 2012   1:51 PM     Wed, Jul 18, 2012  11:24 PM
  Wed, Aug  1, 2012  10:27 PM     Fri, Aug 17, 2012  10:54 AM
  Fri, Aug 31, 2012   8:57 AM     Sat, Sep 15, 2012   9:10 PM
  Sat, Sep 29, 2012  10:18 PM     Mon, Oct 15, 2012   7:02 AM
  Mon, Oct 29, 2012   2:50 PM     Tue, Nov 13, 2012   5:08 PM
  Wed, Nov 28, 2012   9:47 AM     Thu, Dec 13, 2012   3:42 AM
  Fri, Dec 28, 2012   5:22 AM     Fri, Jan 11, 2013   2:45 PM

                             2013
        Full Moon                              New Moon
  Sat, Jan 26, 2013  11:40 PM     Sun, Feb 10, 2013   2:22 AM
  Mon, Feb 25, 2013   3:28 PM     Mon, Mar 11, 2013   2:54 PM
  Wed, Mar 27, 2013   4:30 AM     Wed, Apr 10, 2013   4:38 AM
  Thu, Apr 25, 2013   3:00 PM     Thu, May  9, 2013   7:31 PM
  Fri, May 24, 2013  11:27 PM     Sat, Jun  8, 2013  10:58 AM
  Sun, Jun 23, 2013   6:33 AM     Mon, Jul  8, 2013   2:15 AM
  Mon, Jul 22, 2013   1:16 PM     Tue, Aug  6, 2013   4:51 PM
  Tue, Aug 20, 2013   8:45 PM     Thu, Sep  5, 2013   6:36 AM
  Thu, Sep 19, 2013   6:12 AM     Fri, Oct  4, 2013   7:34 PM
  Fri, Oct 18, 2013   6:37 PM     Sun, Nov  3, 2013   7:49 AM
  Sun, Nov 17, 2013  10:16 AM     Mon, Dec  2, 2013   7:22 PM
  Tue, Dec 17, 2013   4:29 AM     Wed, Jan  1, 2014   6:15 AM

                             2014
        Full Moon                              New Moon
  Wed, Jan 15, 2014  11:53 PM     Thu, Jan 30, 2014   4:40 PM
  Fri, Feb 14, 2014   6:54 PM     Sat, Mar  1, 2014   3:02 AM
  Sun, Mar 16, 2014  12:10 PM     Sun, Mar 30, 2014   1:48 PM
  Tue, Apr 15, 2014   2:45 AM     Tue, Apr 29, 2014   1:17 AM
  Wed, May 14, 2014   2:18 PM     Wed, May 28, 2014   1:42 PM
  Thu, Jun 12, 2014  11:13 PM     Fri, Jun 27, 2014   3:10 AM
  Sat, Jul 12, 2014   6:27 AM     Sat, Jul 26, 2014   5:42 PM
  Sun, Aug 10, 2014   1:11 PM     Mon, Aug 25, 2014   9:12 AM
  Mon, Sep  8, 2014   8:39 PM     Wed, Sep 24, 2014   1:13 AM
  Wed, Oct  8, 2014   5:50 AM     Thu, Oct 23, 2014   4:56 PM
  Thu, Nov  6, 2014   5:23 PM     Sat, Nov 22, 2014   7:32 AM
  Sat, Dec  6, 2014   7:27 AM     Sun, Dec 21, 2014   8:36 PM

                             2015
        Full Moon                              New Moon
  Sun, Jan  4, 2015  11:53 PM     Tue, Jan 20, 2015   8:15 AM
  Tue, Feb  3, 2015   6:09 PM     Wed, Feb 18, 2015   6:49 PM
  Thu, Mar  5, 2015   1:06 PM     Fri, Mar 20, 2015   4:38 AM
  Sat, Apr  4, 2015   7:07 AM     Sat, Apr 18, 2015   1:59 PM
  Sun, May  3, 2015  10:44 PM     Sun, May 17, 2015  11:15 PM
  Tue, Jun  2, 2015  11:21 AM     Tue, Jun 16, 2015   9:07 AM
  Wed, Jul  1, 2015   9:22 PM     Wed, Jul 15, 2015   8:26 PM
  Fri, Jul 31, 2015   5:45 AM     Fri, Aug 14, 2015   9:54 AM
  Sat, Aug 29, 2015   1:38 PM     Sun, Sep 13, 2015   1:42 AM
  Sun, Sep 27, 2015   9:52 PM     Mon, Oct 12, 2015   7:06 PM
  Tue, Oct 27, 2015   7:06 AM     Wed, Nov 11, 2015  12:47 PM
  Wed, Nov 25, 2015   5:44 PM     Fri, Dec 11, 2015   5:29 AM
  Fri, Dec 25, 2015   6:11 AM     Sat, Jan  9, 2016   8:31 PM


Surprise! The common definition of a blue moon is wrong!

Along with many others, I used to believe that a "blue moon" was a month with two full moons. However, research by Sky and Telescope shows that this was due to an error made by the magazine in 1946. The original definition is the third full moon in a season with four full moons (instead of the usual three).

For my part, I like the original definition better. It relates one astronomical event, a full moon, with another astronomical marker, the solstices and the equinoxes. The "new" definition uses an imposed time scheme, the Gregorian calendar, for its definition.

So from now on, I'm going by the old definition. If you prefer the newer definition, or you want to look for a "black moon" (the second new moon in a month)... well, you've got eyes and you've got a mind. Look for yourself in the table above. For either definition, consult this chart from Sky and Telescope for the dates of the blue moons for the next twenty years; past 2020 there's this chart which will take you to the end of the century.

There are other definitions of a "blue moon." Someone wrote me with an obscure astrological definition: the second full moon that occurs in the same sign. There is also a drink called the Blue Moon, but I have found more than one recipe. The moon can appear blue as a result of rare meteorological conditions. Of course, there's always the conversational meaning of "a rare occurrence."

For my part, as you can read below, I have no plans to research other definitions of the term. I only plan to revise this web page further once in a blue moon.


I first put up these moon tables in 1994, and updated them every year or so. Then I put up tables in 2001 for the following five years. I used to receive e-mails on them, but I no longer do. Presumably, folks have discovered other, superior resources for the same information. Since apparently this web page is not as useful as it used to be, I don't feel a strong need to revise it. That's why I went through ten years worth of calculation at once in 2005. In 2015, I'll decide if I want to keep making them.

In the past, I received several messages from visitors to this page asking various calendar questions (e.g., "How often are there blue moons?" or "When will there be a full moon on Halloween?"). I'm sorry, but I don't have time to be an astronomical calendar calculation service. However, you can find any number of freeware or shareware calendar programs on the net to answer such questions. Some resources are:

You can also do what I did and write your own programs. My sources for my astronomical calculations were:

These books give you all the bits and pieces of astronomical calculations, which you can fit together as you like. It's not any harder than, say, building a plastic model from a kit and then putting the model in your own diorama.

You probably already have the necessary tools on your computer. Even if you don't have a programming language like C, C++, BASIC, or FORTRAN on your machine, the calculations are well within the capabilities of any spreadsheet program. The web browser you're using probably supports Javascript or Java (arithmetic isn't their forte, but you can give it a shot).

Even if you have no additional software for your computer, you can still program them to perform arithmetic calcuations. On Macs you can use AppleScript, and I imagine something similar can be done with .COM files in Windows. (I used IGOR, because it was convenient at the time.)

So if you're looking for a project that will teach you the basics of programming, calendar calculations are a good way to start.


Copyright (c) 2005 by Bill Seligman with these exceptions
Table created 27-Dec-2005
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