30 BC

Millennium:	1st millennium BC
Centuries:	2nd century BC 1st century BC 1st century
Decades:	50s BC 40s BC 30s BC 20s BC 10s BC
Years:	33 BC 32 BC 31 BC 30 BC 29 BC 28 BC 27 BC

30 BC in various calendars
Gregorian calendar	30 BC XXIX BC
Ab urbe condita	724
Ancient Egypt era	XXXIII dynasty, 294
- Pharaoh	Cleopatra VII, 22
Ancient Greek era	187th Olympiad, year 3
Assyrian calendar	4721
Bengali calendar	−622
Berber calendar	921
Buddhist calendar	515
Burmese calendar	−667
Byzantine calendar	5479–5480
Chinese calendar	庚寅年 (Metal Tiger) 2667 or 2607 — to — 辛卯年 (Metal Rabbit) 2668 or 2608
Coptic calendar	−313 – −312
Discordian calendar	1137
Ethiopian calendar	−37 – −36
Hebrew calendar	3731–3732
Hindu calendars
- Vikram Samvat	27–28
- Shaka Samvat	N/A
- Kali Yuga	3071–3072
Holocene calendar	9971
Iranian calendar	651 BP – 650 BP
Islamic calendar	671 BH – 670 BH
Javanese calendar	N/A
Julian calendar	30 BC XXIX BC
Korean calendar	2304
Minguo calendar	1941 before ROC 民前1941年
Nanakshahi calendar	−1497
Seleucid era	282/283 AG
Thai solar calendar	513–514
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Year 30 BC was either a common year starting on Wednesday, Thursday or Friday or a leap year starting on Thursday (link will display the full calendar) of the Julian calendar (the sources differ, see leap year error for further information) and a common year starting on Wednesday of the Proleptic Julian calendar. At the time, it was known as the Year of the Consulship of Octavian and Crassus (or, less frequently, year 724 Ab urbe condita). The denomination 30 BC 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.