| Millennium: | 4th Millennium BC |
|---|---|
| Centuries: | 32nd cent. BC – 31st cent. BC – 30th cent. BC |
| Decades: | 3110s BC 3100s BC 3090s BC – 3080s BC – 3070s BC 3060s BC 3050s BC |
| Years: | 3088 BC 3087 BC 3086 BC – 3085 BC – 3084 BC 3083 BC 3082 BC |
| Gregorian calendar | 3085 MMMLXXXV |
| Ab urbe condita | 3838 |
| Armenian calendar | 2534 ԹՎ ՍՇԼԴ |
| Assyrian calendar | 7835 |
| Bahá'í calendar | 1241–1242 |
| Bengali calendar | 2492 |
| Berber calendar | 4035 |
| British Regnal year | N/A |
| Buddhist calendar | 3629 |
| Burmese calendar | 2447 |
| Byzantine calendar | 8593–8594 |
| Chinese calendar | 甲申年 (Wood Monkey) 5781 or 5721 — to — 乙酉年 (Wood Rooster) 5782 or 5722 |
| Coptic calendar | 2801–2802 |
| Discordian calendar | 4251 |
| Ethiopian calendar | 3077–3078 |
| Hebrew calendar | 6845–6846 |
| Hindu calendars | |
| - Vikram Samvat | 3141–3142 |
| - Shaka Samvat | 3006–3007 |
| - Kali Yuga | 6185–6186 |
| Holocene calendar | 13085 |
| Igbo calendar | 2085–2086 |
| Iranian calendar | 2463–2464 |
| Islamic calendar | 2539–2540 |
| Japanese calendar | Heisei 1097 (平成１０９７年) |
| Javanese calendar | 3050–3051 |
| Juche calendar | 1174 |
| Julian calendar | Gregorian minus 21 days |
| Korean calendar | 5418 |
| Minguo calendar | ROC 1174 民國1174年 |
| Nanakshahi calendar | 1617 |
| Thai solar calendar | 3628 |
| Unix time | 35186054400–35217590399 |
The year 3085 BC