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Astronomical annual overview

Moon calendar 2033

Every date of the Moon’s four primary astronomical phases. All dates and times are shown in Coordinated Universal Time (UTC).

UTC
Astronomical dates

Primary Moon phases in 2033

The list gives the instants of new moon, first quarter, full moon and last quarter. Every date and time is displayed in UTC.

New moon 13 dates
First quarter 13 dates
Full moon 12 dates
Last quarter 12 dates

January

01
  1. New moon 10:16 UTC
  2. First quarter 03:34 UTC
  3. Full moon 13:07 UTC
  4. Last quarter 17:45 UTC
  5. New moon 21:59 UTC

February

02
  1. First quarter 13:33 UTC
  2. Full moon 07:04 UTC
  3. Last quarter 11:53 UTC

March

03
  1. New moon 08:23 UTC
  2. First quarter 01:26 UTC
  3. Full moon 01:37 UTC
  4. Last quarter 01:49 UTC
  5. New moon 17:51 UTC

April

04
  1. First quarter 15:13 UTC
  2. Full moon 19:17 UTC
  3. Last quarter 11:42 UTC
  4. New moon 02:46 UTC

May

05
  1. First quarter 06:45 UTC
  2. Full moon 10:42 UTC
  3. Last quarter 18:28 UTC
  4. New moon 11:36 UTC

June

06
  1. First quarter 23:38 UTC
  2. Full moon 23:19 UTC
  3. Last quarter 23:29 UTC
  4. New moon 21:06 UTC

July

07
  1. First quarter 17:12 UTC
  2. Full moon 09:28 UTC
  3. Last quarter 04:07 UTC
  4. New moon 08:12 UTC

August

08
  1. First quarter 10:25 UTC
  2. Full moon 18:07 UTC
  3. Last quarter 09:42 UTC
  4. New moon 21:39 UTC

September

09
  1. First quarter 02:23 UTC
  2. Full moon 02:20 UTC
  3. Last quarter 17:33 UTC
  4. New moon 13:39 UTC

October

10
  1. First quarter 16:32 UTC
  2. Full moon 10:57 UTC
  3. Last quarter 04:47 UTC
  4. New moon 07:28 UTC
  5. First quarter 04:46 UTC

November

11
  1. Full moon 20:32 UTC
  2. Last quarter 20:08 UTC
  3. New moon 01:39 UTC
  4. First quarter 15:15 UTC

December

12
  1. Full moon 07:22 UTC
  2. Last quarter 15:28 UTC
  3. New moon 18:46 UTC
  4. First quarter 00:20 UTC

Moon phases are global astronomical instants. This calendar uses UTC throughout, without daylight-saving changes. Convert the listed time to your local time zone; your local calendar date may differ.

Understanding Moon phases

The four primary phases at a glance

A complete phase cycle lasts about 29.5 days on average. The changing shape is caused by the relative positions of the Sun, Earth and Moon, not by Earth’s shadow, which is relevant only during a lunar eclipse.

New moon

The Moon is approximately between Earth and the Sun, so its illuminated side is barely visible from Earth.

First quarter

About a week after new moon, half of the visible lunar disc is illuminated and continues to wax.

Full moon

Earth is approximately between the Sun and the Moon, and the Earth-facing side appears fully illuminated.

Last quarter

About a week after full moon, half of the visible disc is illuminated again and continues to wane.