Daily calendar conversion
Chinese calendar, 21 December 1990
21 December 1990 is lunar month 11, day 5, 1990, the Metal Horse year. The day pillar is Yang Metal Monkey. 2 named Yi activities; a general Ji restriction. 7 auspicious time windows; waxing crescent.
Friday
December 1990
Lunar date
11th Month · 5th Day
一九九〇年冬月初五
Year of the
Fire restrains Metal in the Five Phases, so the Horse’s fixed element is understood as moderating the year element.
Moon phase
Lunar day 5 · between principal phases
Daily almanac · 1990-12-21
The daily almanac & observances
庚申 Yang Metal Monkey
The stem gives Metal; the branch gives Monkey.
Read this stem against your Day Master →Huang Dao and Hei Dao name the day-god cycle. For a particular plan, read its Yi and Ji activities below.
宜 Traditionally suitable
- Ritual cleansing or removal解除
- Clean the house扫舍
- No other activities recommended馀事勿取
忌 Traditionally avoid
- Nothing is considered suitable诸事不宜
Month 11 · 30 days
17 December 1990–15 January 1991. 25 days remain after this date.
Follow the Moon through this month →Winter Solstice
22 December 1990 · In parts of northern China people eat dumplings, while Shanghai and some southern communities favour tangyuan; other foods and rites vary locally.
The Moon this month · UTC+8
December 1990 moon phases
Full moon
Lunar 10/16
Last quarter
Lunar 10/23
New moon
Lunar 11/1
First quarter
Lunar 11/9
Calculated phase moments use fixed UTC+8. A lunar day number and a Moon phase describe different things. How they fit together →
The surrounding month
Explore the days around 21 December 1990
Select a day to update its quick overview. Today, the selected date and festivals have separate markers.
| SunSunday | MonMonday | TueTuesday | WedWednesday | ThuThursday | FriFriday | SatSaturday |
|---|---|---|---|---|---|---|
Each cell shows the Gregorian day above its lunar month/day. Select any day to update the quick overview, then open its full reading for more detail.
Calendar terms explained
This day in the traditional cycles
Each result below names this date’s position and explains what the term means.
- Day pillar 日柱
- Yang Metal Monkey · 庚申— this date’s position in the repeating 60-day stem–branch cycle.Hidden stems are stems conventionally contained in the day pillar’s earthly branch. Primary is the main layer; middle and residual are secondary layers.
- Yang Metal · Gēng 庚 (primary)
- Yang Water · Rén 壬 (middle)
- Yang Earth · Wù 戊 (residual)
- Month pillar 月柱
- Yang Earth Rat · 戊子— the month’s position in the 60-part stem–branch cycle.
- Year pillar 年柱
- Yang Metal Horse · 庚午— Fire controls Metal; the year’s position in the 60-year cycle.
- Day Na Yin 纳音
- Pomegranate Wood · 石榴木— a fixed named element assigned to this pillar; its element is Wood.
- Day animal 生肖
- Monkey · 猴— the animal of the earthly branch in this date’s pillar.
- Opposes 冲
- Yang Wood Tiger · 甲寅— a Six Clash (六冲), the branch directly opposite this date’s branch in the 12-branch cycle.
- Lunar mansion 宿
- Ghost · 鬼— this date’s position in the repeating 28-mansion cycle.South palace (南) · Goat creature (羊) · traditionally unfavourable (凶)
- Day officer 建除
- Complete · 成— determined by this date’s earthly branch relative to its solar-term month branch.
- Auspicious directions 吉方
- Joy 喜神: Northwest (西北)
- Blessing 福神: Southwest (西南)
- Wealth 财神: East (正东)
- Peng Zu lines 彭祖百忌
- The verse cautions against setting warp and weft, saying the loom may stand empty.庚不经络织机虚张The verse cautions against positioning a bed, saying spirits may enter the room.申不安床鬼祟入房Two traditional almanac caution lines selected by this date’s stem and branch.
Keep the result
Share this conversion
Use the result
Plan another date
21 December 1990 corresponds to lunar year 1990, month 11, day 5, in the 庚午 year — the Year of the Horse. You can enter another date in the date converter.
A solar term is one of twenty-four seasonal divisions of the year. The Moon phase follows the astronomical cycle independently of the numbered lunar day.
Looking for a date-selection overview? The almanac guide introduces the calendar’s auspicious-date tools and terminology.


