年齢計算
年、月、日などで正確な年齢を計算します
合計7,935日です
| 曜日： | 日曜日 |
|---|---|
| 次の誕生日 | 🎉 次の誕生日まで100日 |
| 2004はうるう年でしたか？ | はい、2004は366日のうるう年でした。 |
よくある質問
2004/08/01に生まれた場合、何歳ですか？
2004/08/01に生まれた場合、あなたは21歳8ヶ月22日です（2026/04/23時点）。合計7,935日です。
2004/08/01は何曜日でしたか？
2004/08/01は日曜日でした。
2004はうるう年でしたか？
はい、2004は366日のうるう年でした。
♌ Your birth constellation: Leo
Traditional dates: July 23 – August 22
Leo is one of the few constellations that actually resembles what it is supposed to depict — a crouching lion. Its brightest star, Regulus, is a four-star system about 79 light-years away. The Leonid meteor shower, one of the most spectacular annual meteor events, appears to radiate from Leo every November. Ancient Egyptians venerated Leo because the Nile's annual flood coincided with the Sun's passage through it.
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: Monkey (Wood)
In the traditional Chinese calendar, 2004 is a year of the Monkey with the element Wood. 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 Monkey is one of the most culturally rich zodiac animals, immortalized in the classic novel "Journey to the West" (16th century) through the character Sun Wukong, the Monkey King. In Chinese culture, the Monkey symbolizes cleverness and playfulness. Monkey imagery in Chinese art often represents wishes for career advancement.
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 | ♌ Leo |
|---|---|
| Chinese zodiac | 🐒 Monkey |
| Generation | Generation Z |
年齢に関する豆知識
If you stacked all the days in an average lifetime, it would take about 29,200 days to reach age 80.