What sign and year pillar is 2005? The year turns at 立春, not at New Year — here is the exact boundary.
乙酉
年柱 Year pillar · 乙 阴木 (Wood) · 地支 酉
生肖 鸡 · Rooster五行 Wood立春 2005-02-04农历新年 2005-02-09
八字以二十四节气定年月。一年的分界是 立春，2005 年的立春是 2005-02-04。很多排盘工具用元旦或农历新年换年柱，这会让年初出生的人整张命盘算错。
| 出生日期 Birth date | 年柱 Year pillar | 生肖 Zodiac |
|---|---|---|
| 2005-01-01 → 2005-02-04（立春前） | 甲申 | 猴 Monkey |
| 2005-02-04（立春后）→ 年底 | 乙酉 | 鸡 Rooster |
If you were born in January or early February of 2005, you very likely belong to the previous year pillar (甲申). This is the single most common error in free BaZi calculators.
| 节气 | 日期 | 节气 | 日期 |
|---|---|---|---|
| 小寒 | 2005-01-05 | 大寒 | 2005-01-20 |
| 立春 | 2005-02-04 | 雨水 | 2005-02-18 |
| 惊蛰 | 2005-03-05 | 春分 | 2005-03-20 |
| 清明 | 2005-04-05 | 谷雨 | 2005-04-20 |
| 立夏 | 2005-05-05 | 小满 | 2005-05-21 |
| 芒种 | 2005-06-05 | 夏至 | 2005-06-21 |
| 小暑 | 2005-07-07 | 大暑 | 2005-07-23 |
| 立秋 | 2005-08-07 | 处暑 | 2005-08-23 |
| 白露 | 2005-09-07 | 秋分 | 2005-09-23 |
| 寒露 | 2005-10-08 | 霜降 | 2005-10-23 |
| 立冬 | 2005-11-07 | 小雪 | 2005-11-22 |
| 大雪 | 2005-12-07 | 冬至 | 2005-12-22 |
节气日期为北京时间（UTC+8）民用日。Solar-term dates are Beijing civil dates.
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