The 24 Solar Terms
A solar term is not a date, it is an instant. Every time the Sun's apparent ecliptic longitude crosses a multiple of 15°, a term begins — Chunfen at 0°, Lichun at 315°. This site computes that instant to the second rather than transcribing a published almanac, using the same library as the production calculator so a chart and a table can never disagree.
Solar terms in 2026
| Term | Longitude | Instant (UTC+8) |
|---|---|---|
| XiaohanJie | 285° | 2026-01-05 16:23:10 |
| Dahan | 300° | 2026-01-20 09:44:56 |
| LichunJie | 315° | 2026-02-04 04:02:08 |
| Yushui | 330° | 2026-02-18 23:51:56 |
| JingzheJie | 345° | 2026-03-05 21:59:00 |
| Chunfen | 0° | 2026-03-20 22:45:59 |
| QingmingJie | 15° | 2026-04-05 02:40:00 |
| Guyu | 30° | 2026-04-20 09:39:08 |
| LixiaJie | 45° | 2026-05-05 19:48:44 |
| Xiaoman | 60° | 2026-05-21 08:36:45 |
| MangzhongJie | 75° | 2026-06-05 23:48:21 |
| Xiazhi | 90° | 2026-06-21 16:24:30 |
| XiaoshuJie | 105° | 2026-07-07 09:56:57 |
| Dashu | 120° | 2026-07-23 03:13:05 |
| LiqiuJie | 135° | 2026-08-07 19:42:43 |
| Chushu | 150° | 2026-08-23 10:18:49 |
| BailuJie | 165° | 2026-09-07 22:41:16 |
| Qiufen | 180° | 2026-09-23 08:05:14 |
| HanluJie | 195° | 2026-10-08 14:29:17 |
| Shuangjiang | 210° | 2026-10-23 17:37:57 |
| LidongJie | 225° | 2026-11-07 17:52:05 |
| Xiaoxue | 240° | 2026-11-22 15:23:21 |
| DaxueJie | 255° | 2026-12-07 10:52:32 |
| Dongzhi | 270° | 2026-12-22 04:50:14 |
The twelve marked Jie are the month boundaries — a BaZi month pillar changes at each of them. The other twelve are "Qi" and do not.
By year
By term
- Chunfen
- Qingming
- Guyu
- Lixia
- Xiaoman
- Mangzhong
- Xiazhi
- Xiaoshu
- Dashu
- Liqiu
- Chushu
- Bailu
- Qiufen
- Hanlu
- Shuangjiang
- Lidong
- Xiaoxue
- Daxue
- Dongzhi
- Xiaohan
- Dahan
- Lichun
- Yushui
- Jingzhe
Sources
- lunar-javascript (6tail, MIT) — solar-term instants, 干支 pillars, 大運/流年, 胎元/命宮/身宮 and the almanac tables.
- Hong Kong Observatory, Date and Time of the 24 Solar Terms — the reference used to check solar-term instants.
- Xieji Bianfang Shu and Sanming Tonghui — classical sources for the Wuhu Dun and Wushu Dun stem rules, hidden stems and the Ten Gods.
Algorithms last checked: 2026-07 · Method and accuracy