年齢計算
年、月、日などで正確な年齢を計算します
合計10,339日です
| 曜日： | 木曜日 |
|---|---|
| 次の誕生日 | 🎉 次の誕生日まで253日 |
| 1998はうるう年でしたか？ | いいえ、1998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
1998/01/01に生まれた場合、何歳ですか？
1998/01/01に生まれた場合、あなたは28歳3ヶ月22日です（2026/04/23時点）。合計10,339日です。
1998/01/01は何曜日でしたか？
1998/01/01は木曜日でした。
1998はうるう年でしたか？
いいえ、1998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: Tiger (Earth)
In the traditional Chinese calendar, 1998 is a year of the Tiger with the element Earth. 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 Tiger holds a position of great cultural significance in East Asia. In Chinese tradition, the character for "king" (wang) is said to appear in the markings on a tiger's forehead. Tiger imagery has been used for over 3,000 years in Chinese art to ward off evil spirits and protect households.
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 | 🐅 Tiger |
| Generation | Generation Z |
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.