Moon Phase Calendar

This moon phase calendar shows every new moon, first quarter, full moon and last quarter for 2027, or any year from 2000 to 2100, with the time of each phase in your time zone. Pick the whole year on one page or a single month with large squares, choose the time zone and a 12- or 24-hour clock, and download a PDF to print on US Letter or A4. The phases are calculated in your browser with the method in Jean Meeus’s Astronomical Algorithms and agree to within a minute with the US Naval Observatory for every phase from 2026 to 2034. 2027 has 12 full moons, the first on 22 January. You can also add the phases to your calendar app with the .ics file, or download them as a CSV.

100% private — everything runs in your browser. The phases are calculated on your device; nothing is uploaded.

How to make a moon phase calendar

1. Pick the year (2027 is set) and whether you want the whole year or one month.
2. Choose your time zone and a 12- or 24-hour clock: a phase near midnight can fall on a different date in another zone.
3. Check the next phase and the list of every phase below the calendar.
4. Download the calendar as a PDF on US Letter or A4, the phases as a CSV, or the .ics file for your calendar app.

What you can use it for

• A wall chart of the year’s full and new moons
• Planning night photography and stargazing around the new moon
• Teaching the lunar cycle in class with a month page
• Adding full moon dates to a shared calendar
• Checking the moon on a past or future date

Full moons 2027

Month	Full moon (UTC)	US Eastern
January	Friday, Jan 22, 2027, 12:17	Jan 22, 2027, 7:17 am
February	Saturday, Feb 20, 2027, 23:23	Feb 20, 2027, 6:23 pm
March	Monday, Mar 22, 2027, 10:44	Mar 22, 2027, 6:44 am
April	Tuesday, Apr 20, 2027, 22:27	Apr 20, 2027, 6:27 pm
May	Thursday, May 20, 2027, 10:59	May 20, 2027, 6:59 am
June	Saturday, Jun 19, 2027, 00:44	Jun 18, 2027, 8:44 pm
July	Sunday, Jul 18, 2027, 15:45	Jul 18, 2027, 11:45 am
August	Tuesday, Aug 17, 2027, 07:29	Aug 17, 2027, 3:29 am
September	Wednesday, Sep 15, 2027, 23:04	Sep 15, 2027, 7:04 pm
October	Friday, Oct 15, 2027, 13:47	Oct 15, 2027, 9:47 am
November	Sunday, Nov 14, 2027, 03:26	Nov 13, 2027, 10:26 pm
December	Monday, Dec 13, 2027, 16:09	Dec 13, 2027, 11:09 am

Times are rounded to the minute. US Eastern is UTC − 5 hours in winter and UTC − 4 hours from 14 March to 7 November 2027.

New moons 2027

Month	New moon (UTC)	US Eastern
January	Thursday, Jan 7, 2027, 20:24	Jan 7, 2027, 3:24 pm
February	Saturday, Feb 6, 2027, 15:56	Feb 6, 2027, 10:56 am
March	Monday, Mar 8, 2027, 09:29	Mar 8, 2027, 4:29 am
April	Tuesday, Apr 6, 2027, 23:51	Apr 6, 2027, 7:51 pm
May	Thursday, May 6, 2027, 10:58	May 6, 2027, 6:58 am
June	Friday, Jun 4, 2027, 19:40	Jun 4, 2027, 3:40 pm
July	Sunday, Jul 4, 2027, 03:02	Jul 3, 2027, 11:02 pm
August	Monday, Aug 2, 2027, 10:05	Aug 2, 2027, 6:05 am
August	Tuesday, Aug 31, 2027, 17:41	Aug 31, 2027, 1:41 pm
September	Thursday, Sep 30, 2027, 02:36	Sep 29, 2027, 10:36 pm
October	Friday, Oct 29, 2027, 13:36	Oct 29, 2027, 9:36 am
November	Sunday, Nov 28, 2027, 03:24	Nov 27, 2027, 10:24 pm
December	Monday, Dec 27, 2027, 20:12	Dec 27, 2027, 3:12 pm

How the phases are worked out

New moon, first quarter, full moon and last quarter are the moments when the Moon’s ecliptic longitude is 0°, 90°, 180° and 270° ahead of the Sun’s. The tool computes them with the method in Jean Meeus, Astronomical Algorithms (2nd edition, 1998), chapter 49, then converts from Terrestrial Time to Universal Time with the ΔT formula published on the NASA eclipse web site (read 14 November 2026). Every one of the 445 phases from 2026 to 2034 is within one minute of the US Naval Observatory’s published time, and 396 match it to the minute.

2027 month by month

Every 2027 month page shows the moon phases next to the holidays: January, February, March, April, May, June, July, August, September, October, November, December.

The whole year on one page: 2027 Calendar. To draw a crescent or a set of named phase discs, use the Moon Template.

Frequently asked questions

How many full moons are there in 2027?

12. The first is on 22 January 2027 and the last on 13 December 2027 (UTC). 2027 has 49 principal phases in all: 13 new moons, 12 first quarters, 12 full moons and 12 last quarters.

When is the first full moon of 2027?

Friday 22 January 2027 at 12:17 UTC, which is 7:17 am US Eastern time.

Why does the date of a phase change with the time zone?

Each phase happens at one instant for the whole Earth. A full moon at 03:26 UTC on 14 November 2027 is still 13 November in US time zones, so the calendar uses the time zone you pick.

Is there a blue moon in 2027?

Not in the calendar-month sense: no month of 2027 has two full moons (in UTC). The nearest are 31 May 2026 and 31 December 2028, the second full moons of those months.

How accurate are the times?

The phases are calculated with the method in chapter 49 of Jean Meeus’s Astronomical Algorithms. We checked every phase from 2026 to 2034 against the US Naval Observatory table: all 445 are within one minute.

Which years can I make?

Any year from 2000 to 2100, as a whole year on one page or month by month.

Why do the small moons look different between phases?

Only the four principal phases are calculated to the minute. The small drawings on the other days show roughly how much of the Moon is lit, as seen from the northern hemisphere, to make the cycle easy to follow.

Can I add the moon phases to my calendar?

Yes. Download the .ics file and import it into your calendar app; each phase is an event at its exact time, shown in your calendar’s own time zone.

Is my information uploaded?

No. Everything is worked out in this browser, and the files you download are made on your device.