| Millennium: | 3rd millennium |
|---|---|
| Centuries: | 20th century – 21st century – 22nd century |
| Decades: | 2010s 2020s 2030s – 2040s – 2050s 2060s 2070s |
| Years: | 2040 2041 2042 – 2043 – 2044 2045 2046 |
| Gregorian calendar | 2043 MMXLIII |
| Ab urbe condita | 2796 |
| Armenian calendar | 1492 ԹՎ ՌՆՂԲ |
| Assyrian calendar | 6793 |
| Bahá'í calendar | 199–200 |
| Bengali calendar | 1450 |
| Berber calendar | 2993 |
| British Regnal year | 91 Eliz. 2 – 92 Eliz. 2 |
| Buddhist calendar | 2587 |
| Burmese calendar | 1405 |
| Byzantine calendar | 7551–7552 |
| Chinese calendar | 壬戌年十一月廿一日 (4679/4739-11-21) — to —
癸亥年十二月初一日(4680/4740-12-1) |
| Coptic calendar | 1759–1760 |
| Ethiopian calendar | 2035–2036 |
| Hebrew calendar | 5803–5804 |
| Hindu calendars | |
| - Vikram Samvat | 2099–2100 |
| - Shaka Samvat | 1965–1966 |
| - Kali Yuga | 5144–5145 |
| Holocene calendar | 12043 |
| Iranian calendar | 1421–1422 |
| Islamic calendar | 1465–1466 |
| Japanese calendar | Heisei 55 (平成55年) |
| Korean calendar | 4376 |
| Minguo calendar | ROC 132 民國132年 |
| Thai solar calendar | 2586 |
| Unix time | 2303683200–2335219199 |
2043 (MMXLIII) will be a common year starting on Thursday of the Gregorian calendar.