Full Moon Calendar
Date+ MoonPhase()+ illumination= daily disc
KnownMonth + yearFindDaily phaseSampleLocal noonSourceAstronomy EngineOutputMoon gridProofElongation
CalculationTime
Full Moon Calendar
A printable lunar planning sheet for engine-backed full moon dates, local UTC offsets, prep dates, viewing windows and source caveats beside the CalculationTime clockface.
Inputs, result, proof and time.
Use the instrument above, then check the calculation record, assumptions and related tools below.
Printable full moon calendar
Observation and content planner
Sydney, Australia - 2027- UTC offset
- +10h
- Full moons
- 12
- Weekend moons
- 3
- Window
- 2d each side
January 2027 full moon
Fri, 22 Jan 2027
Summer season lens - engine event 1Prep dateTue, 19 Jan 20273 days before
Viewing window20 Jan to 24 JanWeather and horizon dependent
WeekdayFridayWeekday planning flag
Local basisUTC +10Date can shift near midnight
February 2027 full moon
Sun, 21 Feb 2027
Summer season lens - engine event 2Prep dateThu, 18 Feb 20273 days before
Viewing window19 Feb to 23 FebWeather and horizon dependent
WeekdaySundayWeekend planning flag
Local basisUTC +10Date can shift near midnight
March 2027 full moon
Mon, 22 Mar 2027
Autumn season lens - engine event 3Prep dateFri, 19 Mar 20273 days before
Viewing window20 Mar to 24 MarWeather and horizon dependent
WeekdayMondayWeekday planning flag
Local basisUTC +10Date can shift near midnight
April 2027 full moon
Wed, 21 Apr 2027
Autumn season lens - engine event 4Prep dateSun, 18 Apr 20273 days before
Viewing window19 Apr to 23 AprWeather and horizon dependent
WeekdayWednesdayWeekday planning flag
Local basisUTC +10Date can shift near midnight
May 2027 full moon
Thu, 20 May 2027
Autumn season lens - engine event 5Prep dateMon, 17 May 20273 days before
Viewing window18 May to 22 MayWeather and horizon dependent
WeekdayThursdayWeekday planning flag
Local basisUTC +10Date can shift near midnight
June 2027 full moon
Sat, 19 June 2027
Autumn season lens - engine event 6Prep dateWed, 16 June 20273 days before
Viewing window17 June to 21 JuneWeather and horizon dependent
WeekdaySaturdayWeekend planning flag
Local basisUTC +10Date can shift near midnight
July 2027 full moon
Mon, 19 July 2027
Winter season lens - engine event 7Prep dateFri, 16 July 20273 days before
Viewing window17 July to 21 JulyWeather and horizon dependent
WeekdayMondayWeekday planning flag
Local basisUTC +10Date can shift near midnight
August 2027 full moon
Tue, 17 Aug 2027
Winter season lens - engine event 8Prep dateSat, 14 Aug 20273 days before
Viewing window15 Aug to 19 AugWeather and horizon dependent
WeekdayTuesdayWeekday planning flag
Local basisUTC +10Date can shift near midnight
September 2027 full moon
Thu, 16 Sept 2027
Winter season lens - engine event 9Prep dateMon, 13 Sept 20273 days before
Viewing window14 Sept to 18 SeptWeather and horizon dependent
WeekdayThursdayWeekday planning flag
Local basisUTC +10Date can shift near midnight
October 2027 full moon
Fri, 15 Oct 2027
Spring season lens - engine event 10Prep dateTue, 12 Oct 20273 days before
Viewing window13 Oct to 17 OctWeather and horizon dependent
WeekdayFridayWeekday planning flag
Local basisUTC +10Date can shift near midnight
November 2027 full moon
Sun, 14 Nov 2027
Spring season lens - engine event 11Prep dateThu, 11 Nov 20273 days before
Viewing window12 Nov to 16 NovWeather and horizon dependent
WeekdaySundayWeekend planning flag
Local basisUTC +10Date can shift near midnight
December 2027 full moon
Tue, 14 Dec 2027
Spring season lens - engine event 12Prep dateSat, 11 Dec 20273 days before
Viewing window12 Dec to 16 DecWeather and horizon dependent
WeekdayTuesdayWeekday planning flag
Local basisUTC +10Date can shift near midnight
22 JanJanuary 202721 FebFebruary 202722 MarMarch 202721 AprApril 202720 MayMay 202719 JuneJune 202719 JulyJuly 202717 AugAugust 202716 SeptSeptember 202715 OctOctober 202714 NovNovember 202714 DecDecember 2027
Planner Notes
Confirm exact full moon instants with a current almanac before publishing. Use this sheet for observation reminders, night photography planning and editorial calendars.
Assumptions
Full moon instants are generated with Astronomy Engine SearchMoonQuarter and quarter 2. The entered UTC offset is applied as a fixed civil-time offset after the UTC search.
Limits
This is a printable planning worksheet, not an official ephemeris, tide table, visibility forecast, astrological reading or navigation tool. Verify exact phase times before publication.
Method
The worksheet generates full moon dates from the astronomy engine and turns them into practical planning rows
The calculator asks Astronomy Engine for each full moon instant in the chosen year, applies the selected UTC offset, and then derives prep dates, viewing windows, weekdays and the season label from the same source-backed date stream.
Lunar basis
Full moon instants come from Astronomy Engine SearchMoonQuarter where quarter 2 is full moon, using the same astronomy package as the site instruments.
Print path
The print button opens browser print. The print stylesheet keeps the full moon list, prep dates, viewing windows, assumptions, notes and source limits.
Limits
This is a planning calendar, not an observatory almanac, tide table, weather forecast, astrology claim, navigation aid or official lunar phase source.
Source Notes
Full moon dates can shift by location when the phase occurs near midnight
CalculationTime uses Astronomy Engine phase searches for printable planning worksheets. Exact full moon instants should still be checked against official almanacs or observatory data before publishing dates, booking travel, planning public events or making scientific claims.