Moon Tables
"So good-bye, dear, and amen; here's hoping we meet now and then..."
I've provided these moon tables for about three decades. At this point, I think it's time to stop updating them:
- I've received no feedback about these tables for the past seven years. There are many other resources for this information available on the web, most of them superior in one form or another to what I've offered on this page.
- When I compare the exact times from my calculations to those of sites like the Naval Observatory, I've noticed a discrepancy that's increased as the years have gone by. Almost certainly this is due to some coding or rounding error in my program. I could try to track it down, but if no one is using the tables, the effort would be wasted.
- As I note at the end of the page, you can do these calculations yourself. It's not hard, and it's a fine way to teach yourself programming.
If you're reading this page and looking for dates after 2025, thank you for your attention. The information you seek is out there. Keep looking at the sky; you never know what you'll see!
-- Bill Seligman, 04-May-2023
Full and new moons, 2010-2025
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 US Daylight Saving Time; at the time of this writing, that means adding an hour for those times between the second Sunday in March and the first Sunday in November. This is to make it slightly easier for anyone outside the US to adjust the times for their location.
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
2016
Full Moon New Moon
Sat, Jan 23, 2016 8:46 PM Mon, Feb 8, 2016 9:40 AM
Mon, Feb 22, 2016 1:20 PM Tue, Mar 8, 2016 8:56 PM
Wed, Mar 23, 2016 7:01 AM Thu, Apr 7, 2016 6:25 AM
Fri, Apr 22, 2016 12:24 AM Fri, May 6, 2016 2:31 PM
Sat, May 21, 2016 4:16 PM Sat, Jun 4, 2016 10:01 PM
Mon, Jun 20, 2016 6:04 AM Mon, Jul 4, 2016 6:03 AM
Tue, Jul 19, 2016 5:59 PM Tue, Aug 2, 2016 3:46 PM
Thu, Aug 18, 2016 4:29 AM Thu, Sep 1, 2016 4:04 AM
Fri, Sep 16, 2016 2:08 PM Fri, Sep 30, 2016 7:13 PM
Sat, Oct 15, 2016 11:25 PM Sun, Oct 30, 2016 12:39 PM
Mon, Nov 14, 2016 8:53 AM Tue, Nov 29, 2016 7:19 AM
Tue, Dec 13, 2016 7:07 PM Thu, Dec 29, 2016 1:54 AM
2017
Full Moon New Moon
Thu, Jan 12, 2017 6:35 AM Fri, Jan 27, 2017 7:08 PM
Fri, Feb 10, 2017 7:34 PM Sun, Feb 26, 2017 10:00 AM
Sun, Mar 12, 2017 9:54 AM Mon, Mar 27, 2017 9:59 PM
Tue, Apr 11, 2017 1:09 AM Wed, Apr 26, 2017 7:18 AM
Wed, May 10, 2017 4:43 PM Thu, May 25, 2017 2:46 PM
Fri, Jun 9, 2017 8:10 AM Fri, Jun 23, 2017 9:33 PM
Sat, Jul 8, 2017 11:08 PM Sun, Jul 23, 2017 4:47 AM
Mon, Aug 7, 2017 1:12 PM Mon, Aug 21, 2017 1:31 PM
Wed, Sep 6, 2017 2:04 AM Wed, Sep 20, 2017 12:30 AM
Thu, Oct 5, 2017 1:42 PM Thu, Oct 19, 2017 2:12 PM
Sat, Nov 4, 2017 12:24 AM Sat, Nov 18, 2017 6:42 AM
Sun, Dec 3, 2017 10:48 AM Mon, Dec 18, 2017 1:31 AM
2018
Full Moon New Moon
Mon, Jan 1, 2018 9:25 PM Tue, Jan 16, 2018 9:18 PM
Wed, Jan 31, 2018 8:27 AM Thu, Feb 15, 2018 4:06 PM
Thu, Mar 1, 2018 7:52 PM Sat, Mar 17, 2018 8:14 AM
Sat, Mar 31, 2018 7:37 AM Sun, Apr 15, 2018 8:59 PM
Sun, Apr 29, 2018 7:59 PM Tue, May 15, 2018 6:50 AM
Tue, May 29, 2018 9:20 AM Wed, Jun 13, 2018 2:45 PM
Wed, Jun 27, 2018 11:54 PM Thu, Jul 12, 2018 9:49 PM
Fri, Jul 27, 2018 3:22 PM Sat, Aug 11, 2018 4:59 AM
Sun, Aug 26, 2018 6:58 AM Sun, Sep 9, 2018 1:02 PM
Mon, Sep 24, 2018 9:54 PM Mon, Oct 8, 2018 10:47 PM
Wed, Oct 24, 2018 11:47 AM Wed, Nov 7, 2018 11:02 AM
Fri, Nov 23, 2018 12:41 AM Fri, Dec 7, 2018 2:21 AM
Sat, Dec 22, 2018 12:50 PM Sat, Jan 5, 2019 8:29 PM
2019
Full Moon New Moon
Mon, Jan 21, 2019 12:17 AM Mon, Feb 4, 2019 4:04 PM
Tue, Feb 19, 2019 10:54 AM Wed, Mar 6, 2019 11:05 AM
Wed, Mar 20, 2019 8:43 PM Fri, Apr 5, 2019 3:52 AM
Fri, Apr 19, 2019 6:12 AM Sat, May 4, 2019 5:46 PM
Sat, May 18, 2019 4:11 PM Mon, Jun 3, 2019 5:03 AM
Mon, Jun 17, 2019 3:31 AM Tue, Jul 2, 2019 2:17 PM
Tue, Jul 16, 2019 4:39 PM Wed, Jul 31, 2019 10:13 PM
Thu, Aug 15, 2019 7:31 AM Fri, Aug 30, 2019 5:38 AM
Fri, Sep 13, 2019 11:35 PM Sat, Sep 28, 2019 1:28 PM
Sun, Oct 13, 2019 4:10 PM Sun, Oct 27, 2019 10:40 PM
Tue, Nov 12, 2019 8:37 AM Tue, Nov 26, 2019 10:07 AM
Thu, Dec 12, 2019 12:14 AM Thu, Dec 26, 2019 12:15 AM
2020
Full Moon New Moon
Fri, Jan 10, 2020 2:23 PM Fri, Jan 24, 2020 4:44 PM
Sun, Feb 9, 2020 2:34 AM Sun, Feb 23, 2020 10:33 AM
Mon, Ma r 9, 2020 12:48 PM Tue, Mar 24, 2020 4:29 AM
Tue, Apr 7, 2020 9:35 PM Wed, Apr 22, 2020 9:26 PM
Thu, May 7, 2020 5:45 AM Fri, May 22, 2020 12:39 PM
Fri, Jun 5, 2020 2:12 PM Sun, Jun 21, 2020 1:42 AM
Sat, Jul 4, 2020 11:45 PM Mon, Jul 20, 2020 12:33 PM
Mon, Aug 3, 2020 10:59 AM Tue, Aug 18, 2020 9:42 PM
Wed, Sep 2, 2020 12:23 AM Thu, Sep 17, 2020 6:01 AM
Thu, Oct 1, 2020 4:06 PM Fri, Oct 16, 2020 2:32 PM
Sat, Oct 31, 2020 9:51 AM Sun, Nov 15, 2020 12:09 AM
Mon, Nov 30, 2020 4:31 AM Mon, Dec 14, 2020 11:18 AM
Tue, Dec 29, 2020 10:30 PM Wed, Jan 13, 2021 12:02 AM
2021
Full Moon New Moon
Thu, Jan 28, 2021 2:18 PM Thu, Feb 11, 2021 2:08 PM
Sat, Feb 27, 2021 3:19 AM Sat, Mar 13, 2021 5:23 AM
Sun, Mar 28, 2021 1:50 PM Sun, Apr 11, 2021 9:32 PM
Mon, Apr 26, 2021 10:33 PM Tue, May 11, 2021 2:01 PM
Wed, May 26, 2021 6:15 AM Thu, Jun 10, 2021 5:53 AM
Thu, Jun 24, 2021 1:40 PM Fri, Jul 9, 2021 8:17 PM
Fri, Jul 23, 2021 9:37 PM Sun, Aug 8, 2021 8:50 AM
Sun, Aug 22, 2021 7:02 AM Mon, Sep 6, 2021 7:52 PM
Mon, Sep 20, 2021 6:54 PM Wed, Oct 6, 2021 6:05 AM
Wed, Oct 20, 2021 9:57 AM Thu, Nov 4, 2021 4:15 PM
Fri, Nov 19, 2021 3:59 AM Sat, Dec 4, 2021 2:44 AM
Sat, Dec 18, 2021 11:37 PM Sun, Jan 2, 2022 1:36 PM
2022
Full Moon New Moon
Mon, Jan 17, 2022 6:50 PM Tue, Feb 1, 2022 12:49 AM
Wed, Feb 16, 2022 11:59 AM Wed, Mar 2, 2022 12:38 PM
Fri, Mar 18, 2022 2:20 AM Fri, Apr 1, 2022 1:27 AM
Sat, Apr 16, 2022 1:57 PM Sat, Apr 30, 2022 3:30 PM
Sun, May 15, 2022 11:16 PM Mon, May 30, 2022 6:31 AM
Tue, Jun 14, 2022 6:52 AM Tue, Jun 28, 2022 9:53 PM
Wed, Jul 13, 2022 1:38 PM Thu, Jul 28, 2022 12:55 PM
Thu, Aug 11, 2022 8:36 PM Sat, Aug 27, 2022 3:16 AM
Sat, Sep 10, 2022 4:59 AM Sun, Sep 25, 2022 4:54 PM
Sun, Oct 9, 2022 3:54 PM Tue, Oct 25, 2022 5:48 AM
Tue, Nov 8, 2022 6:02 AM Wed, Nov 23, 2022 5:57 PM
Wed, Dec 7, 2022 11:09 PM Fri, Dec 23, 2022 5:18 AM
2023
Full Moon New Moon
Fri, Jan 6, 2023 6:09 PM Sat, Jan 21, 2023 3:55 PM
Sun, Feb 5, 2023 1:30 PM Mon, Feb 20, 2023 2:09 AM
Tue, Mar 7, 2023 7:42 AM Tue, Mar 21, 2023 12:26 PM
Wed, Apr 5, 2023 11:37 PM Wed, Apr 19, 2023 11:15 PM
Fri, May 5, 2023 12:36 PM Fri, May 19, 2023 10:55 AM
Sat, Jun 3, 2023 10:44 PM Sat, Jun 17, 2023 11:39 PM
Mon, Jul 3, 2023 6:40 AM Mon, Jul 17, 2023 1:32 PM
Tue, Aug 1, 2023 1:33 PM Wed, Aug 16, 2023 4:38 AM
Wed, Aug 30, 2023 8:37 PM Thu, Sep 14, 2023 8:39 PM
Fri, Sep 29, 2023 4:58 AM Sat, Oct 14, 2023 12:54 PM
Sat, Oct 28, 2023 3:24 PM Mon, Nov 13, 2023 4:27 AM
Mon, Nov 27, 2023 4:16 AM Tue, Dec 12, 2023 6:32 PM
Tue, Dec 26, 2023 7:33 PM Thu, Jan 11, 2024 6:58 AM
2024
Full Moon New Moon
Thu, Jan 25, 2024 12:54 PM Fri, Feb 9, 2024 6:00 PM
Sat, Feb 24, 2024 7:30 AM Sun, Mar 10, 2024 4:03 AM
Mon, Mar 25, 2024 2:01 AM Mon, Apr 8, 2024 1:23 PM
Tue, Apr 23, 2024 6:50 PM Tue, May 7, 2024 10:24 PM
Thu, May 23, 2024 8:55 AM Thu, Jun 6, 2024 7:40 AM
Fri, Jun 21, 2024 8:10 PM Fri, Jul 5, 2024 5:59 PM
Sun, Jul 21, 2024 5:20 AM Sun, Aug 4, 2024 6:14 AM
Mon, Aug 19, 2024 1:28 PM Mon, Sep 2, 2024 8:56 PM
Tue, Sep 17, 2024 9:37 PM Wed, Oct 2, 2024 1:50 PM
Thu, Oct 17, 2024 6:28 AM Fri, Nov 1, 2024 7:47 AM
Fri, Nov 15, 2024 4:29 PM Sun, Dec 1, 2024 1:22 AM
Sun, Dec 15, 2024 4:02 AM Mon, Dec 30, 2024 5:27 PM
2025
Full Moon New Moon
Mon, Jan 13, 2025 5:27 PM Wed, Jan 29, 2025 7:37 AM
Wed, Feb 12, 2025 8:54 AM Thu, Feb 27, 2025 7:46 PM
Fri, Mar 14, 2025 1:55 AM Sat, Mar 29, 2025 6:00 AM
Sat, Apr 12, 2025 7:23 PM Sun, Apr 27, 2025 2:33 PM
Mon, May 12, 2025 11:57 AM Mon, May 26, 2025 10:04 PM
Wed, Jun 11, 2025 2:45 AM Wed, Jun 25, 2025 5:33 AM
Thu, Jul 10, 2025 3:38 PM Thu, Jul 24, 2025 2:12 PM
Sat, Aug 9, 2025 2:57 AM Sat, Aug 23, 2025 1:07 AM
Sun, Sep 7, 2025 1:10 PM Sun, Sep 21, 2025 2:54 PM
Mon, Oct 6, 2025 10:49 PM Tue, Oct 21, 2025 7:25 AM
Wed, Nov 5, 2025 8:20 AM Thu, Nov 20, 2025 1:47 AM
Thu, Dec 4, 2025 6:15 PM Fri, Dec 19, 2025 8:44 PM
Blue moons
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. 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 until 2020; after that 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.
Moon calculations
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. If you're looking for a project that will teach you the basics of programming, calendar calculations are a good way to start. My sources for astronomical formulae were:
These books give you all the bits and pieces of astronomical calculations, which you can fit together as you like. It's not 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
; arithmetic isn't its main strength, but you can give it a shot.
(I wrote the previous sentences years ago. Now I would include Python
as a good starting computer language.)
Even if you have
no additional software for your computer, you can still program them to perform arithmetic calculations. 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.
Previous moon tables
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 calculations at once in 2005. In 2014, I extended them to 2025.
--
WilliamSeligman - 2014-02-14