1340
| Years |
|---|
| Millennium |
| 2nd millennium |
| Centuries |
| Decades |
| Years |
| 1340 by topic |
|---|
| Leaders |
|
| Birth and death categories |
| Births – Deaths |
| Establishments and disestablishments categories |
| Establishments – Disestablishments |
| Art and literature |
| 1340 in poetry |
| Gregorian calendar | 1340 MCCCXL |
| Ab urbe condita | 2093 |
| Armenian calendar | 789 ԹՎ ՉՁԹ |
| Assyrian calendar | 6090 |
| Balinese saka calendar | 1261–1262 |
| Bengali calendar | 746–747 |
| Berber calendar | 2290 |
| English Regnal year | 13 Edw. 3 – 14 Edw. 3 |
| Buddhist calendar | 1884 |
| Burmese calendar | 702 |
| Byzantine calendar | 6848–6849 |
| Chinese calendar | 己卯年 (Earth Rabbit) 4037 or 3830 — to — 庚辰年 (Metal Dragon) 4038 or 3831 |
| Coptic calendar | 1056–1057 |
| Discordian calendar | 2506 |
| Ethiopian calendar | 1332–1333 |
| Hebrew calendar | 5100–5101 |
| Hindu calendars | |
| - Vikram Samvat | 1396–1397 |
| - Shaka Samvat | 1261–1262 |
| - Kali Yuga | 4440–4441 |
| Holocene calendar | 11340 |
| Igbo calendar | 340–341 |
| Iranian calendar | 718–719 |
| Islamic calendar | 740–741 |
| Japanese calendar | Ryakuō 3 (暦応３年) |
| Javanese calendar | 1252–1253 |
| Julian calendar | 1340 MCCCXL |
| Korean calendar | 3673 |
| Minguo calendar | 572 before ROC 民前572年 |
| Nanakshahi calendar | −128 |
| Thai solar calendar | 1882–1883 |
| Tibetan calendar | 阴土兔年 (female Earth-Rabbit) 1466 or 1085 or 313 — to — 阳金龙年 (male Iron-Dragon) 1467 or 1086 or 314 |
Year 1340 (MCCCXL) was a leap year starting on Saturday of the Julian calendar.