年齢計算
年、月、日などで正確な年齢を計算します
合計12,896日です
| 曜日： | 火曜日 |
|---|---|
| 次の誕生日 | 🎉 次の誕生日まで253日 |
| 1991はうるう年でしたか？ | いいえ、1991はうるう年ではありませんでした。365日でした。 |
よくある質問
1991/01/01に生まれた場合、何歳ですか？
1991/01/01に生まれた場合、あなたは35歳3ヶ月22日です（2026/04/23時点）。合計12,896日です。
1991/01/01は何曜日でしたか？
1991/01/01は火曜日でした。
1991はうるう年でしたか？
いいえ、1991はうるう年ではありませんでした。365日でした。
Famous people born on January 1
Author of The Catcher in the Rye
Hip-hop pioneer
♑ Your birth constellation: Capricorn
Traditional dates: December 22 – January 19
Capricornus is one of the faintest constellations in the zodiac, lying in a region ancient Mesopotamians called the "Sea" because of its many water-related constellations. The Babylonians depicted it as a goat-fish hybrid around 1000 BCE. Due to the precession of equinoxes, the Sun now passes through Capricornus about a month later than the traditional astrological dates suggest.
The zodiac system was created by Babylonian astronomers around 500 BCE as a coordinate system for tracking the Sun, Moon, and planets along the ecliptic. The twelve signs divide the ecliptic into 30-degree segments. Due to the precession of equinoxes — a 26,000-year wobble of Earth's axis — the astrological dates no longer correspond to the actual constellations the Sun passes through. Modern astronomy treats the zodiac as a historical coordinate system, not a personality framework.
Read more about the astronomical history of the zodiac in our complete zodiac guide.
🐐 Chinese zodiac: Goat (Metal)
In the traditional Chinese calendar, 1991 is a year of the Goat with the element Metal. The Chinese zodiac (shengxiao) is a repeating 12-year cycle, with each year associated with an animal. Combined with the five elements (Wood, Fire, Earth, Metal, Water), the full cycle takes 60 years.
The Goat (or Sheep, or Ram — the Chinese character yang encompasses all three) represents peace and harmony in Chinese tradition. The character for "auspicious" (xiang) contains the goat radical, linking the animal to good fortune. In Chinese folk art, three goats together symbolize the coming of spring and renewal.
The Chinese zodiac is a cultural and calendrical tradition with roots stretching back over 2,000 years. It was originally tied to astronomical observations of Jupiter's roughly 12-year orbital period. While widely used in East Asian cultures for festivals, naming customs, and social tradition, it is best understood as cultural heritage rather than a predictive system.
Explore the full Chinese zodiac cycle in our Chinese zodiac guide.
| Zodiac sign | ♑ Capricorn |
|---|---|
| Chinese zodiac | 🐐 Goat |
| Generation | Millennial |
年齢に関する豆知識
The concept of a 'golden birthday' — when you turn the age of the day you were born — was invented in 1955.