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Recognised as Decade

1290s

  • 1290-1299
  • 3,652 days
  • 2 leap years
  • 13th century

The 1290s was the decade from 1 January 1290 to 31 December 1299, 3,652 days in total. It contained 2 leap years (1292, 1296). Counted strictly from year 1 the decade would run 1291 to 1300; this page uses the common reading.

Span of the decade

First day1 January 1290
Last day31 December 1299
Opened on aSunday
Closed on aThursday
Days in the decade3,652
Weeks in the decade521 and 5 days
Century13th century

The years of the 1290s

1290Common year, 365 days
1291Common year, 365 days
1292Leap year, 366 days
1293Common year, 365 days
1294Common year, 365 days
1295Common year, 365 days
1296Leap year, 366 days
1297Common year, 365 days
1298Common year, 365 days
1299Common year, 365 days

Leap years

Leap years1292, 1296
How many2the usual count for a decade
Common years8

Unix time

Start of the decade-21,458,649,600seconds since 1 January 1970
End of the decade-21,143,116,801the last second of 31 December

Where a decade starts

This page uses1290 to 1299the common reading, grouping years by their shared first three digits
The strict ordinal decade1291 to 1300counting in tens from year 1, the 130th decade runs 1291 to 1300
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 “1290s” by Nerdulator’s date engine. Nothing here was retrieved from a database of answers or written by a model.