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Lunar calendar

Moon phases 2017

The lunar calendar for 2017: 12 new moons and 12 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 2017 · 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 2017

  • First quarterThu 5 Jan, 19:47
  • Full moonThu 12 Jan, 11:34
  • Last quarterThu 19 Jan, 22:14
  • New moonSat 28 Jan, 00:07

February 2017

  • First quarterSat 4 Feb, 04:19
  • Full moonSat 11 Feb, 00:33
  • Last quarterSat 18 Feb, 19:33
  • New moonSun 26 Feb, 14:58

March 2017

  • First quarterSun 5 Mar, 11:32
  • Full moonSun 12 Mar, 14:54
  • Last quarterMon 20 Mar, 15:58
  • New moonTue 28 Mar, 02:57

April 2017

  • First quarterMon 3 Apr, 18:39
  • Full moonTue 11 Apr, 06:08
  • Last quarterWed 19 Apr, 09:57
  • New moonWed 26 Apr, 12:16

May 2017

  • First quarterWed 3 May, 02:47
  • Full moonWed 10 May, 21:43
  • Last quarterFri 19 May, 00:33
  • New moonThu 25 May, 19:44

June 2017

  • First quarterThu 1 Jun, 12:42
  • Full moonFri 9 Jun, 13:10
  • Last quarterSat 17 Jun, 11:33
  • New moonSat 24 Jun, 02:31

July 2017

  • First quarterSat 1 Jul, 00:51
  • Full moonSun 9 Jul, 04:07
  • Last quarterSun 16 Jul, 19:26
  • New moonSun 23 Jul, 09:46
  • First quarterSun 30 Jul, 15:23

August 2017

  • Full moonMon 7 Aug, 18:11
  • Last quarterTue 15 Aug, 01:15
  • New moonMon 21 Aug, 18:30
  • First quarterTue 29 Aug, 08:13

September 2017

  • Full moonWed 6 Sept, 07:03
  • Last quarterWed 13 Sept, 06:25
  • New moonWed 20 Sept, 05:30
  • First quarterThu 28 Sept, 02:54

October 2017

  • Full moonThu 5 Oct, 18:40
  • Last quarterThu 12 Oct, 12:25
  • New moonThu 19 Oct, 19:12
  • First quarterFri 27 Oct, 22:22

November 2017

  • Full moonSat 4 Nov, 05:23
  • Last quarterFri 10 Nov, 20:37
  • New moonSat 18 Nov, 11:42
  • First quarterSun 26 Nov, 17:03

December 2017

  • Full moonSun 3 Dec, 15:47
  • Last quarterSun 10 Dec, 07:51
  • New moonMon 18 Dec, 06:31
  • First quarterTue 26 Dec, 09:20

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 2017?

There are 12 new moons, 13 first quarters, 12 full moons and 12 last quarters in 2017. The first new moon is on Saturday, 28 January 2017, the first full moon on Thursday, 12 January 2017 (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.