46 BC

Millennium:	1st millennium BC
Centuries:	2nd century BC 1st century BC 1st century
Decades:	60s BC 50s BC 40s BC 30s BC 20s BC
Years:	49 BC 48 BC 47 BC 46 BC 45 BC 44 BC 43 BC

46 BC in various calendars

Gregorian calendar	46 BC XLV BC
Ab urbe condita	708
Ancient Egypt era	XXXIII dynasty, 278
- Pharaoh	Cleopatra VII, 6
Ancient Greek era	183rd Olympiad, year 3
Assyrian calendar	4705
Bengali calendar	−638
Berber calendar	905
Buddhist calendar	499
Burmese calendar	−683
Byzantine calendar	5463–5464
Chinese calendar	甲戌年 (Wood Dog) 2651 or 2591     — to — 乙亥年 (Wood Pig) 2652 or 2592
Coptic calendar	−329 – −328
Discordian calendar	1121
Ethiopian calendar	−53 – −52
Hebrew calendar	3715–3716
Hindu calendars
- Vikram Samvat	11–12
- Shaka Samvat	N/A
- Kali Yuga	3055–3056
Holocene calendar	9955
Iranian calendar	667 BP – 666 BP
Islamic calendar	688 BH – 686 BH
Javanese calendar	N/A
Julian calendar	46 BC XLV BC
Korean calendar	2288
Minguo calendar	1957 before ROC 民前1957年
Nanakshahi calendar	−1513
Seleucid era	266/267 AG
Thai solar calendar	497–498
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Year 46 BC was the last year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Consulship of Caesar and Lepidus (or, less frequently, year 708 Ab urbe condita). The denomination 46 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. This year marks the change from the Numan calendar to the Julian calendar. The Romans had to periodically add a leap month every few years to keep the calendar year in sync with the solar year but had missed a few with the chaos of the civil wars of the late republic. Julius Caesar added two extra leap months to recalibrate the calendar in preparation for his calendar reform, which went into effect in 45 BC. This year therefore had 445 days, and was nicknamed annus confusionis ("year of confusion").

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