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Recognised as Decade

1830s

  • 1830-1839
  • 3,652 days
  • 2 leap years
  • 19th century

The 1830s was the decade from 1 January 1830 to 31 December 1839, 3,652 days in total. It contained 2 leap years (1832, 1836). Counted strictly from year 1 the decade would run 1831 to 1840; this page uses the common reading.

Span of the decade

First day1 January 1830
Last day31 December 1839
Opened on aFriday
Closed on aTuesday
Days in the decade3,652
Weeks in the decade521 and 5 days
Century19th century

The years of the 1830s

1830Common year, 365 days
1831Common year, 365 days
1832Leap year, 366 days
1833Common year, 365 days
1834Common year, 365 days
1835Common year, 365 days
1836Leap year, 366 days
1837Common year, 365 days
1838Common year, 365 days
1839Common year, 365 days

Leap years

Leap years1832, 1836
How many2the usual count for a decade
Common years8

Unix time

Start of the decade-4,417,977,600seconds since 1 January 1970
End of the decade-4,102,444,801the last second of 31 December

Where a decade starts

This page uses1830 to 1839the common reading, grouping years by their shared first three digits
The strict ordinal decade1831 to 1840counting in tens from year 1, the 184th decade runs 1831 to 1840
Which is correctBoth, for different questionsthe first is a naming convention, the second follows from counting; neither is derived from the other

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Every value on this page was computed from “1830s” by Nerdulator’s date engine. Nothing here was retrieved from a database of answers or written by a model.