Year 18 BC was either a common year starting on Friday, Saturday or Sunday or a leap year starting on Saturday of the Julian calendar. At the time, it was known as the Year of the Consulship of Lentulus and Lentulus.

Millennium: 1st millennium BC
Centuries: 2nd century BC1st century BC1st century
Decades: 40s BC  30s BC  20s BC  – 10s BC –  0s BC  0s  10s
Years: 21 BC 20 BC 19 BC18 BC17 BC 16 BC 15 BC
18 BC in other calendars
Gregorian calendar18 BC
XVII BC
Ab urbe condita736
Ancient Greek era190th Olympiad, year 3
Assyrian calendar4733
Balinese saka calendarN/A
Bengali calendar−610
Berber calendar933
Buddhist calendar527
Burmese calendar−655
Byzantine calendar5491–5492
Chinese calendar壬寅(Water Tiger)
2679 or 2619
    — to —
癸卯年 (Water Rabbit)
2680 or 2620
Coptic calendar−301 – −300
Discordian calendar1149
Ethiopian calendar−25 – −24
Hebrew calendar3743–3744
Hindu calendars
 - Vikram Samvat39–40
 - Shaka SamvatN/A
 - Kali Yuga3083–3084
Holocene calendar9983
Iranian calendar639 BP – 638 BP
Islamic calendar659 BH – 658 BH
Javanese calendarN/A
Julian calendar18 BC
XVII BC
Korean calendar2316
Minguo calendar1929 before ROC
民前1929年
Nanakshahi calendar−1485
Seleucid era294/295 AG
Thai solar calendar525–526
Tibetan calendar阳水虎年
(male Water-Tiger)
109 or −272 or −1044
    — to —
阴水兔年
(female Water-Rabbit)
110 or −271 or −1043

Events

change