| Millennium: | 2nd Millennium |
|---|---|
| Centuries: | 19th cent. – 20th cent. – 21st cent. |
| Decades: | 1950s 1960s 1970s – 1980s – 1990s 2000s 2010s |
| Years: | 1977 1978 1979 – 1980 – 1981 1982 1983 |
| Gregorian calendar | 1980 MCMLXXX |
| Ab urbe condita | 2733 |
| Armenian calendar | 1429 ԹՎ ՌՆԻԹ |
| Assyrian calendar | 6730 |
| Bahá'í calendar | 136–137 |
| Bengali calendar | 1387 |
| Berber calendar | 2930 |
| British Regnal year | 28 Eliz. 2 – 29 Eliz. 2 |
| Buddhist calendar | 2524 |
| Burmese calendar | 1342 |
| Byzantine calendar | 7488–7489 |
| Chinese calendar | 己未年 (Earth Goat) 4676 or 4616 — to — 庚申年 (Metal Monkey) 4677 or 4617 |
| Coptic calendar | 1696–1697 |
| Discordian calendar | 3146 |
| Ethiopian calendar | 1972–1973 |
| Hebrew calendar | 5740–5741 |
| Hindu calendars | |
| - Vikram Samvat | 2036–2037 |
| - Shaka Samvat | 1901–1902 |
| - Kali Yuga | 5080–5081 |
| Holocene calendar | 11980 |
| Igbo calendar | 980–981 |
| Iranian calendar | 1358–1359 |
| Islamic calendar | 1400–1401 |
| Japanese calendar | Shōwa 55 (昭和５５年) |
| Javanese calendar | 1912–1913 |
| Juche calendar | 69 |
| Julian calendar | Gregorian minus 13 days |
| Korean calendar | 4313 |
| Minguo calendar | ROC 69 民國69年 |
| Nanakshahi calendar | 512 |
| Thai solar calendar | 2523 |
| Unix time | 315532800–347155199 |
The year 1980 BC
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