1640

1640 in other calendars
Gregorian calendar	1640 ; MDCXL
Ab urbe condita	2393
Armenian calendar	1089 ; ?? ???
Assyrian calendar	6390
Balinese saka calendar	1561?1562
Bengali calendar	1047
Berber calendar	2590
English Regnal year	15 Cha. 1 ? 16 Cha. 1
Buddhist calendar	2184
Burmese calendar	1002
Byzantine calendar	7148?7149
Chinese calendar	己卯年 (Earth Rabbit ) ; 4336 or 4276 ; ? to ? ; 庚辰年 (Metal Dragon ) ; 4337 or 4277
Coptic calendar	1356?1357
Discordian calendar	2806
Ethiopian calendar	1632?1633
Hebrew calendar	5400?5401
Hindu calendars
- Vikram Samvat	1696?1697
- Shaka Samvat	1561?1562
- Kali Yuga	4740?4741
Holocene calendar	11640
Igbo calendar	640?641
Iranian calendar	1018?1019
Islamic calendar	1049?1050
Japanese calendar	Kan'ei 17 ; (?永１７年)
Javanese calendar	1561?1562
Julian calendar	Gregorian minus 10 days
Korean calendar	3973
Minguo calendar	272 before ROC ; 民前272年
Nanakshahi calendar	172
Thai solar calendar	2182?2183
Tibetan calendar	?土?年 ; (female Earth- Rabbit ) ; 1766 or 1385 or 613 ; ? to ? ; ?金?年 ; (male Iron- Dragon ) ; 1767 or 1386 or 614

Millennium :	2nd millennium
Centuries :	16th century ? 17th century ? 18th century
Decades :	1610s 1620s 1630s ? 1640s ? 1650s 1660s 1670s
Years :	1637 1638 1639 ? 1640 ? 1641 1642 1643

1640 ( MDCXL ) was a leap year starting on Sunday of the Gregorian calendar and a leap year starting on Wednesday of the Julian calendar , the 1640th year of the Common Era (CE) and Anno Domini (AD) designations, the 640th year of the 2nd millennium , the 40th year of the 17th century , and the 1st year of the 1640s decade. As of the start of 1640, the Gregorian calendar was 10 days ahead of the Julian calendar, which remained in localized use until 1923.

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