| Millennium: | 1st millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 740 by topic |
|---|
| Leaders |
| Categories |
| Gregorian calendar | 740 DCCXL |
| Ab urbe condita | 1493 |
| Armenian calendar | 189 ԹՎ ՃՁԹ |
| Assyrian calendar | 5490 |
| Balinese saka calendar | 661–662 |
| Bengali calendar | 147 |
| Berber calendar | 1690 |
| Buddhist calendar | 1284 |
| Burmese calendar | 102 |
| Byzantine calendar | 6248–6249 |
| Chinese calendar | 己卯年 (Earth Rabbit) 3437 or 3230 — to — 庚辰年 (Metal Dragon) 3438 or 3231 |
| Coptic calendar | 456–457 |
| Discordian calendar | 1906 |
| Ethiopian calendar | 732–733 |
| Hebrew calendar | 4500–4501 |
| Hindu calendars | |
| - Vikram Samvat | 796–797 |
| - Shaka Samvat | 661–662 |
| - Kali Yuga | 3840–3841 |
| Holocene calendar | 10740 |
| Iranian calendar | 118–119 |
| Islamic calendar | 122–123 |
| Japanese calendar | Tenpyō 12 (天平１２年) |
| Javanese calendar | 633–635 |
| Julian calendar | 740 DCCXL |
| Korean calendar | 3073 |
| Minguo calendar | 1172 before ROC 民前1172年 |
| Nanakshahi calendar | −728 |
| Seleucid era | 1051/1052 AG |
| Thai solar calendar | 1282–1283 |
| Tibetan calendar | 阴土兔年 (female Earth-Rabbit) 866 or 485 or −287 — to — 阳金龙年 (male Iron-Dragon) 867 or 486 or −286 |
Year 740 (DCCXL) was a leap year starting on Friday (link will display the full calendar) of the Julian calendar, the 740th year of the Common Era (CE) and Anno Domini (AD) designations, the 740th year of the 1st millennium, the 40th year of the 8th century, and the 1st year of the 740s decade. The denomination 740 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.