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Lunar calendar

Moon phases 2020

The lunar calendar for 2020: 12 new moons and 13 full moons, month by month, with a calendar of the Moon’s phase on each day that you can print.

Times in
Week starts on
Prints on white paper, in light ink, one page per six months.

Moon phases 2020 · times in UTC

Dates and times are in UTC. Each day shows the Moon at noon, with the principal phase of the day marked. The discs are drawn as seen from the northern hemisphere: south of the equator the Moon appears upside down.

January 2020

  • First quarterFri 3 Jan, 04:45
  • Full moonFri 10 Jan, 19:21
  • Last quarterFri 17 Jan, 12:58
  • New moonFri 24 Jan, 21:42

February 2020

  • First quarterSun 2 Feb, 01:42
  • Full moonSun 9 Feb, 07:33
  • Last quarterSat 15 Feb, 22:17
  • New moonSun 23 Feb, 15:32

March 2020

  • First quarterMon 2 Mar, 19:57
  • Full moonMon 9 Mar, 17:48
  • Last quarterMon 16 Mar, 09:34
  • New moonTue 24 Mar, 09:28

April 2020

  • First quarterWed 1 Apr, 10:21
  • Full moonWed 8 Apr, 02:35
  • Last quarterTue 14 Apr, 22:56
  • New moonThu 23 Apr, 02:26
  • First quarterThu 30 Apr, 20:38

May 2020

  • Full moonThu 7 May, 10:45
  • Last quarterThu 14 May, 14:03
  • New moonFri 22 May, 17:39
  • First quarterSat 30 May, 03:30

June 2020

  • Full moonFri 5 Jun, 19:12
  • Last quarterSat 13 Jun, 06:24
  • New moonSun 21 Jun, 06:41
  • First quarterSun 28 Jun, 08:16

July 2020

  • Full moonSun 5 Jul, 04:44
  • Last quarterSun 12 Jul, 23:29
  • New moonMon 20 Jul, 17:33
  • First quarterMon 27 Jul, 12:32

August 2020

  • Full moonMon 3 Aug, 15:59
  • Last quarterTue 11 Aug, 16:45
  • New moonWed 19 Aug, 02:42
  • First quarterTue 25 Aug, 17:58

September 2020

  • Full moonWed 2 Sept, 05:22
  • Last quarterThu 10 Sept, 09:26
  • New moonThu 17 Sept, 11:00
  • First quarterThu 24 Sept, 01:55

October 2020

  • Full moonThu 1 Oct, 21:05
  • Last quarterSat 10 Oct, 00:40
  • New moonFri 16 Oct, 19:31
  • First quarterFri 23 Oct, 13:23
  • Full moonSat 31 Oct, 14:49

November 2020

  • Last quarterSun 8 Nov, 13:46
  • New moonSun 15 Nov, 05:07
  • First quarterSun 22 Nov, 04:45
  • Full moonMon 30 Nov, 09:30

December 2020

  • Last quarterTue 8 Dec, 00:37
  • New moonMon 14 Dec, 16:17
  • First quarterMon 21 Dec, 23:41
  • Full moonWed 30 Dec, 03:28

Where you are

Moonrise and moonset in your city

The phase is the same everywhere; moonrise and moonset are not. Open the sun and moon page of your city for today’s times and a month of phases.

Sun and moon in any city

How it works

The four principal phases

The Moon passes through four principal phases in about 29.5 days: new moon (Moon between Earth and Sun, unlit side towards us), first quarter (half the disc lit, on the right seen from the northern hemisphere), full moon (the whole disc lit) and last quarter (half lit, on the left). The days in between are crescent and gibbous, waxing before full moon and waning after it.

A lunar cycle lasts 29.53 days on average, but individual cycles range from about 29.3 to 29.8 days, so a year holds 12 or 13 of each principal phase, and the days between the four phases are not always the same.

Dates depend on the time zone

Each principal phase is one instant, the same everywhere. The calendar date of that instant depends on the time zone: a new moon at 23:30 UTC is already the next day in Asia and Australia. Use the switch above the calendar to read the dates in UTC or in your own zone; the grids and the lists change together.

The phase drawn for an ordinary day is the Moon at noon, so it is the same for everyone in that time zone. Illuminated percentages are the true lit fraction of the disc.

How we compute it

The principal phases are from Jean Meeus’s Astronomical Algorithms (chapter 49) and agree with the US Naval Observatory’s tables to the minute (checked for 2026 and 2027). The illuminated fraction comes from the Moon’s and Sun’s true positions. The calculation assumes a constant difference between Earth time and UTC and is good for 2000–2050.

Questions

Good to know

What are the moon phases in 2020?

There are 12 new moons, 13 first quarters, 13 full moons and 12 last quarters in 2020. The first new moon is on Friday, 24 January 2020, the first full moon on Friday, 10 January 2020 (dates in UTC).

How long is the lunar cycle?

The Moon takes 29.53 days on average to go from one new moon to the next, and individual cycles range from about 29.3 to 29.8 days.

Why does the date of a moon phase differ from another calendar?

A principal phase is a single instant, and the date depends on the time zone. Switch the calendar to your own time zone to read the phases in local time.

Can I print the moon phase calendar?

Yes. Use “Print this calendar”: the page prints on white paper in light ink, six months to a page, with the principal phases marked.

Is the Moon’s phase the same everywhere?

Yes, the same fraction of the disc is lit at the same moment everywhere on Earth. Only the date, and how the Moon looks (upside down in the south), differ.