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Decade

1970s

  • 1970-1979
  • 3,652 days
  • 2 leap years
  • 20th century

The 1970s was the decade from 1 January 1970 to 31 December 1979, 3,652 days in total. It contained 2 leap years (1972, 1976). Counted strictly from year 1 the decade would run 1971 to 1980; this page uses the common reading.

Span of the decade

First day1 January 1970
Last day31 December 1979
Opened on aThursday
Closed on aMonday
Days in the decade3,652
Weeks in the decade521 and 5 days
Century20th century

The years of the 1970s

1970Common year, 365 days
1971Common year, 365 days
1972Leap year, 366 days
1973Common year, 365 days
1974Common year, 365 days
1975Common year, 365 days
1976Leap year, 366 days
1977Common year, 365 days
1978Common year, 365 days
1979Common year, 365 days

Leap years

Leap years1972, 1976
How many2the usual count for a decade
Common years8

Unix time

Start of the decade0seconds since 1 January 1970
End of the decade315,532,799the last second of 31 December

Where a decade starts

This page uses1970 to 1979the common reading, grouping years by their shared first three digits
The strict ordinal decade1971 to 1980counting in tens from year 1, the 198th decade runs 1971 to 1980
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 “1970s” by Nerdulator’s date engine. Nothing here was retrieved from a database of answers or written by a model.