1433
| Millennium: | 2nd millennium |
|---|---|
| Centuries: | 14th century – 15th century – 16th century |
| Decades: | 1400s 1410s 1420s – 1430s – 1440s 1450s 1460s |
| Years: | 1430 1431 1432 – 1433 – 1434 1435 1436 |
| Gregorian calendar | 1433 MCDXXXIII |
| Ab urbe condita | 2186 |
| Armenian calendar | 882 ԹՎ ՊՁԲ |
| Assyrian calendar | 6183 |
| Balinese saka calendar | 1354–1355 |
| Bengali calendar | 840 |
| Berber calendar | 2383 |
| English Regnal year | 11 Hen. 6 – 12 Hen. 6 |
| Buddhist calendar | 1977 |
| Burmese calendar | 795 |
| Byzantine calendar | 6941–6942 |
| Chinese calendar | 壬子年 (Water Rat) 4129 or 4069 — to — 癸丑年 (Water Ox) 4130 or 4070 |
| Coptic calendar | 1149–1150 |
| Discordian calendar | 2599 |
| Ethiopian calendar | 1425–1426 |
| Hebrew calendar | 5193–5194 |
| Hindu calendars | |
| - Vikram Samvat | 1489–1490 |
| - Shaka Samvat | 1354–1355 |
| - Kali Yuga | 4533–4534 |
| Holocene calendar | 11433 |
| Igbo calendar | 433–434 |
| Iranian calendar | 811–812 |
| Islamic calendar | 836–837 |
| Japanese calendar | Eikyō 5 (永享５年) |
| Javanese calendar | 1348–1349 |
| Julian calendar | 1433 MCDXXXIII |
| Korean calendar | 3766 |
| Minguo calendar | 479 before ROC 民前479年 |
| Nanakshahi calendar | −35 |
| Thai solar calendar | 1975–1976 |
| Tibetan calendar | 阳水鼠年 (male Water-Rat) 1559 or 1178 or 406 — to — 阴水牛年 (female Water-Ox) 1560 or 1179 or 407 |
1433 (MCDXXXIII) was a common year starting on Thursday of the Julian calendar, the 1433rd year of the Common Era (CE) and Anno Domini (AD) designations, the 433rd year of the 2nd millennium, the 33rd year of the 15th century, and the 4th year of the 1430s decade. As of the start of 1433, the Gregorian calendar was 9 days ahead of the Julian calendar, which was the dominant calendar of the time.