| Millennium: | 1st millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| AD 140 by topic |
|---|
| Leaders |
| Categories |
| Gregorian calendar | 140 CXL |
| Ab urbe condita | 893 |
| Assyrian calendar | 4890 |
| Balinese saka calendar | 61–62 |
| Bengali calendar | −453 |
| Berber calendar | 1090 |
| Buddhist calendar | 684 |
| Burmese calendar | −498 |
| Byzantine calendar | 5648–5649 |
| Chinese calendar | 己卯年 (Earth Rabbit) 2837 or 2630 — to — 庚辰年 (Metal Dragon) 2838 or 2631 |
| Coptic calendar | −144 – −143 |
| Discordian calendar | 1306 |
| Ethiopian calendar | 132–133 |
| Hebrew calendar | 3900–3901 |
| Hindu calendars | |
| - Vikram Samvat | 196–197 |
| - Shaka Samvat | 61–62 |
| - Kali Yuga | 3240–3241 |
| Holocene calendar | 10140 |
| Iranian calendar | 482 BP – 481 BP |
| Islamic calendar | 497 BH – 496 BH |
| Javanese calendar | 15–16 |
| Julian calendar | 140 CXL |
| Korean calendar | 2473 |
| Minguo calendar | 1772 before ROC 民前1772年 |
| Nanakshahi calendar | −1328 |
| Seleucid era | 451/452 AG |
| Thai solar calendar | 682–683 |
| Tibetan calendar | 阴土兔年 (female Earth-Rabbit) 266 or −115 or −887 — to — 阳金龙年 (male Iron-Dragon) 267 or −114 or −886 |
Year 140 (CXL) was a leap year starting on Thursday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Hadrianus and Caesar (or, less frequently, year 893 Ab urbe condita). The denomination 140 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.