年齢計算
年、月、日などで正確な年齢を計算します
合計1,879日です
| 曜日： | 月曜日 |
|---|---|
| 次の誕生日 | 🎉 次の誕生日まで312日 |
| 2021はうるう年でしたか？ | いいえ、2021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
2021/03/01に生まれた場合、何歳ですか？
2021/03/01に生まれた場合、あなたは5歳1ヶ月22日です（2026/04/23時点）。合計1,879日です。
2021/03/01は何曜日でしたか？
2021/03/01は月曜日でした。
2021はうるう年でしたか？
いいえ、2021はうるう年ではありませんでした。365日でした。
Famous people born on March 1
Pop superstar
Singer-songwriter
♓ Your birth constellation: Pisces
Traditional dates: February 19 – March 20
Pisces is a large V-shaped constellation lying along the ecliptic. Due to axial precession, the vernal equinox point has been moving through Pisces since around 100 BCE — meaning "the first point of Aries" is actually in Pisces. The Babylonians saw two fish connected by a cord, a motif that survives in the modern constellation figure.
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: Ox (Metal)
In the traditional Chinese calendar, 2021 is a year of the Ox 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 Ox represents diligence, dependability, and strength in Chinese tradition. For thousands of years, the ox was the most important work animal in Chinese agriculture, which elevated its status in cultural symbolism. In the zodiac race legend, the Ox would have been first but for the Rat's cunning.
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 | ♓ Pisces |
|---|---|
| Chinese zodiac | 🐂 Ox |
| Generation | Generation Alpha |
年齢に関する豆知識
If you lived on Jupiter, you would only be about 2 years old by your 25th Earth birthday — a Jupiter year is 11.86 Earth years.