| Millennium: | 1st millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| Gregorian calendar | 909 CMIX |
| Ab urbe condita | 1662 |
| Armenian calendar | 358 ԹՎ ՅԾԸ |
| Assyrian calendar | 5659 |
| Bengali calendar | 316 |
| Berber calendar | 1859 |
| Buddhist calendar | 1453 |
| Burmese calendar | 271 |
| Byzantine calendar | 6417–6418 |
| Chinese calendar |
戊辰年 (Earth Dragon) 3605 or 3545 — to — 己巳年 (Earth Snake) 3606 or 3546 |
| Coptic calendar | 625–626 |
| Discordian calendar | 2075 |
| Ethiopian calendar | 901–902 |
| Hebrew calendar | 4669–4670 |
| Hindu calendars | |
| - Vikram Samvat | 965–966 |
| - Shaka Samvat | 830–831 |
| - Kali Yuga | 4009–4010 |
| Holocene calendar | 10909 |
| Iranian calendar | 287–288 |
| Islamic calendar | 296–297 |
| Japanese calendar |
Engi 9 (延喜9年) |
| Javanese calendar | 808–809 |
| Julian calendar | 909 CMIX |
| Korean calendar | 3242 |
| Minguo calendar | 1003 before ROC 民前1003年 |
| Nanakshahi calendar | −559 |
| Seleucid era | 1220/1221 AG |
| Thai solar calendar | 1451–1452 |
Year 909 (CMIX) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar.