| Millennium: | 1st millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| Gregorian calendar | 978 CMLXXVIII |
| Ab urbe condita | 1731 |
| Armenian calendar | 427 ԹՎ ՆԻԷ |
| Assyrian calendar | 5728 |
| Bengali calendar | 385 |
| Berber calendar | 1928 |
| Buddhist calendar | 1522 |
| Burmese calendar | 340 |
| Byzantine calendar | 6486–6487 |
| Chinese calendar |
丁丑年 (Fire Ox) 3674 or 3614 — to — 戊寅年 (Earth Tiger) 3675 or 3615 |
| Coptic calendar | 694–695 |
| Discordian calendar | 2144 |
| Ethiopian calendar | 970–971 |
| Hebrew calendar | 4738–4739 |
| Hindu calendars | |
| - Vikram Samvat | 1034–1035 |
| - Shaka Samvat | 899–900 |
| - Kali Yuga | 4078–4079 |
| Holocene calendar | 10978 |
| Iranian calendar | 356–357 |
| Islamic calendar | 367–368 |
| Japanese calendar |
Jōgen 3 / Tengen 1 (天元元年) |
| Javanese calendar | 879–880 |
| Julian calendar | 978 CMLXXVIII |
| Korean calendar | 3311 |
| Minguo calendar | 934 before ROC 民前934年 |
| Nanakshahi calendar | −490 |
| Seleucid era | 1289/1290 AG |
| Thai solar calendar | 1520–1521 |
Year 978 (CMLXXVIII) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar.