lunar calendar
Months follow phases
A lunar calendar organizes time by the cycles of the moon rather than the sun.
Each month begins with a new moon, making months roughly 29 or 30 days.
Because twelve lunar months fall about eleven days short of a solar year, purely lunar calendars like the Islamic calendar drift through the seasons.
Some calendars, like the Hebrew and Chinese, add periodic extra months to stay aligned with both moon phases and solar seasons.
Unlit lunar phase
- full moonCompletely lit satellite phase
- waxingCoating for shine
- waningGradually decreasing in intensity
- crescentCurved sickle-like arc
gibbous · first quarter · last quarter · synodic · balsamic · blue moon · harvest moon · supermoon
Year's twelfth part
- almanacYearly data compilation
- dateSpecific day or outing
- epochDistinct historical period
- chronologyTemporal ordering of events
intercalation · metonic cycle · ecclesiastical · lunisolar · reckoning · observation · calculation
Ninth Islamic month
- EidIslamic holy celebration
- DiwaliHindu festival of lights
- VesakBuddhist commemoration day
- HanukkahEight-day Jewish celebration
Purim · Passover · Sukkot · mooncake · lantern · fasting · Chinese New Year
Ancient Mesopotamian civilization
- SumeriansAncient southern Mesopotamian people
- MayansPre-Columbian Mesoamerican civilization
- MesopotamiaTigris-Euphrates river region
- antiquityGreat age, ancient era
oracle · harvests · planting · tides · priests · temples · inscriptions · clay tablets
new moon
Unlit lunar phase
- full moonCompletely lit satellite phase
- waxingCoating for shine
- waningGradually decreasing in intensity
crescent · gibbous · first quarter · last quarter · synodic · balsamic · blue moon · harvest moon · supermoon · blood moon
month
Year's twelfth part
chronology · intercalation · metonic cycle · ecclesiastical · lunisolar · reckoning · observation · calculation
Ramadan
Ninth Islamic month
Hanukkah · Purim · Passover · Sukkot · mooncake · lantern · fasting · Chinese New Year
Babylonians
Ancient Mesopotamian civilization
- SumeriansAncient southern Mesopotamian people
- MayansPre-Columbian Mesoamerican civilization
- MesopotamiaTigris-Euphrates river region
antiquity · oracle · harvests · planting · tides · priests · temples · inscriptions · clay tablets · observations
zodiac
Celestial belt of signs
- horoscopeZodiac-based fortune telling
- natal chartStar positions at birth
- transitsActs of passing through
moon sign · ecliptic · mansion · cosmic · Cancer · emotional · intuitive
- Moon Traditionsmoon phases, Mid-Autumn Festival, mooncakes, moon cakes, harvest moon
- ancient calendarsLong Count
- timekeepingclock, watch, watches, clocks, timer
- East AsiaChina, Japan, South Korea, North Korea, Korea
- moonfull moon, crescent moon, new moon, half moon, moonlight
- calendarsalmanac, almanacs, planners, diaries, datebooks
lunar calendarsolar calendar
Year measured by sun
Gregorian calendar · Julian calendar · solar year · lunisolar calendar
lunar calendarperpetual calendar
Date chart for any year
calendar, lunar, calendars, luna, lunula, lunate, lunation, semilunar, lunar calendars