| Millennium: | 1st Millennium |
|---|---|
| Centuries: | 8th cent. – 9th cent. – 10th cent. |
| Decades: | 790s 800s 810s – 820s – 830s 840s 850s |
| Years: | 826 827 828 – 829 – 830 831 832 |
| Gregorian calendar | 829 DCCCXXIX |
| Ab urbe condita | 1582 |
| Armenian calendar | 278 ԹՎ ՄՀԸ |
| Assyrian calendar | 5579 |
| Bengali calendar | 236 |
| Berber calendar | 1779 |
| Buddhist calendar | 1373 |
| Burmese calendar | 191 |
| Byzantine calendar | 6337–6338 |
| Chinese calendar | 戊申年 (Earth Monkey) 3525 or 3465 — to — 己酉年 (Earth Rooster) 3526 or 3466 |
| Coptic calendar | 545–546 |
| Discordian calendar | 1995 |
| Ethiopian calendar | 821–822 |
| Hebrew calendar | 4589–4590 |
| Hindu calendars | |
| - Vikram Samvat | 885–886 |
| - Shaka Samvat | 750–751 |
| - Kali Yuga | 3929–3930 |
| Holocene calendar | 10829 |
| Iranian calendar | 207–208 |
| Islamic calendar | 213–214 |
| Japanese calendar | Tenchō 6 (天長６年) |
| Javanese calendar | 725–726 |
| Julian calendar | 829 DCCCXXIX |
| Korean calendar | 3162 |
| Minguo calendar | 1083 before ROC 民前1083年 |
| Nanakshahi calendar | −639 |
| Seleucid era | 1140/1141 AG |
| Thai solar calendar | 1371–1372 |
The year AD 829