| Millennium: | 1st millennium |
|---|---|
| Centuries: | 6th century – 7th century – 8th century |
| Decades: | 590s 600s 610s – 620s – 630s 640s 650s |
| Years: | 625 626 627 – 628 – 629 630 631 |
| 628 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 628 DCXXVIII |
| Ab urbe condita | 1381 |
| Armenian calendar | 77 ԹՎ ՀԷ |
| Assyrian calendar | 5378 |
| Bahá'í calendar | -1216–-1215 |
| Bengali calendar | 35 |
| Berber calendar | 1578 |
| English Regnal year | N/A |
| Buddhist calendar | 1172 |
| Burmese calendar | -10 |
| Byzantine calendar | 6136–6137 |
| Chinese calendar | 丁亥年十一月二十日 (3264/3324-11-20) — to —
戊子年十二月初一日(3265/3325-12-1) |
| Coptic calendar | 344–345 |
| Ethiopian calendar | 620–621 |
| Hebrew calendar | 4388–4389 |
| Hindu calendars | |
| - Vikram Samvat | 684–685 |
| - Shaka Samvat | 550–551 |
| - Kali Yuga | 3729–3730 |
| Holocene calendar | 10628 |
| Iranian calendar | 6–7 |
| Islamic calendar | 6–7 |
| Japanese calendar | |
| Korean calendar | 2961 |
| Minguo calendar | 1284 before ROC 民前1284年 |
| Thai solar calendar | 1171 |
Year 628 (DCXXVIII) was a leap year starting on Friday (link will display the full calendar) of the Julian calendar. The denomination 628 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.