13 BC

Millennium:	1st millennium BC
Centuries:	2nd century BC 1st century BC 1st century
Decades:	30s BC 20s BC 10s BC 0s BC 0s
Years:	16 BC 15 BC 14 BC 13 BC 12 BC 11 BC 10 BC

13 BC in various calendars
Gregorian calendar	13 BC XII BC
Ab urbe condita	741
Ancient Greek era	191st Olympiad, year 4
Assyrian calendar	4738
Bengali calendar	−605
Berber calendar	938
Buddhist calendar	532
Burmese calendar	−650
Byzantine calendar	5496–5497
Chinese calendar	丁未年 (Fire Goat) 2684 or 2624 — to — 戊申年 (Earth Monkey) 2685 or 2625
Coptic calendar	−296 – −295
Discordian calendar	1154
Ethiopian calendar	−20 – −19
Hebrew calendar	3748–3749
Hindu calendars
- Vikram Samvat	44–45
- Shaka Samvat	N/A
- Kali Yuga	3088–3089
Holocene calendar	9988
Iranian calendar	634 BP – 633 BP
Islamic calendar	654 BH – 652 BH
Javanese calendar	N/A
Julian calendar	13 BC XII BC
Korean calendar	2321
Minguo calendar	1924 before ROC 民前1924年
Nanakshahi calendar	−1480
Seleucid era	299/300 AG
Thai solar calendar	530–531
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Year 13 BC was either a common year starting on Friday, Saturday or Sunday or a leap year starting on Friday or Saturday (link will display the full calendar) of the Julian calendar (the sources differ, see leap year error for further information) and a leap year starting on Wednesday of the Proleptic Julian calendar. At the time, it was known as the Year of the Consulship of Nero and Varus (or, less frequently, year 741 Ab urbe condita). The denomination 13 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.