Sèng 21 nièng
| Gregorius Lĭk-huák | 21 BC XX BC |
| Ab urbe condita | 733 |
| Gū Hĭ-lé-nà̤ lĭk | 189th Olympiad, year 4 |
| Assyria-lĭk | 4730 |
| Bali-lĭk | N/A |
| Mâing-gă-lăk-lĭk | −613 |
| Berber-lĭk | 930 |
| Hŭk-lĭk | 524 |
| Miēng-diêng-lĭk | −658 |
| Byzantine-lĭk | 5488–5489 |
| Nùng-lĭk | 己亥年 (Earth Pig) 2676 or 2616 — to — 庚子年 (Metal Rat) 2677 or 2617 |
| Coptic-lĭk | −304 – −303 |
| Discordia-lĭk | 1146 |
| Ethiopia-lĭk | −28 – −27 |
| Hĭ-báik-lài-lĭk | 3740–3741 |
| Éng-dô-lĭk | |
| - Vikram Samvat | 36–37 |
| - Éng-dô-guók-gă-lĭk | N/A |
| - Kali Yuga | 3080–3081 |
| Holocene-lĭk | 9980 |
| Iran-lĭk | 642 BP – 641 BP |
| Ĭ-sṳ̆-làng-lĭk | 662 BH – 661 BH |
| Cuā-uă-lĭk | N/A |
| Julius-lĭk | 21 BC XX BC |
| Hàng-guók-lĭk | 2313 |
| Mìng-guók-lĭk | 1932 before ROC 民前1932年 |
| Nanakshahi-lĭk | −1488 |
| Seleucid-lĭk | 291/292 AG |
| Tái-guók-lĭk | 522–523 |
| Să̤-câung-lĭk | 陰土豬年 (female Earth-Pig) 106 or −275 or −1047 — to — 陽金鼠年 (male Iron-Rat) 107 or −274 or −1046 |
Sèng 21 nièng găk Julius Lĭk-huák diē-sié sê siŏh ciáh bìng-nièng, tàu gĕ̤ng sê bái-săng.
