Decade
1600s
- 1600-1609
- 3,653 days
- 3 leap years
- 16th century
The 1600s was the decade from 1 January 1600 to 31 December 1609, 3,653 days in total. It contained 3 leap years (1600, 1604, 1608). Counted strictly from year 1 the decade would run 1601 to 1610; this page uses the common reading.
Span of the decade
First day1 January 1600
Last day31 December 1609
Opened on aSaturday
Closed on aThursday
Days in the decade3,653
Weeks in the decade521 and 6 days
Century16th century
The years of the 1600s
Leap years
Leap years1600, 1604, 1608
How many3a decade spanning a skipped century leap year has fewer
Common years7
Unix time
Start of the decade-11,676,096,000seconds since 1 January 1970
End of the decade-11,360,476,801the last second of 31 December
Where a decade starts
This page uses1600 to 1609the common reading, grouping years by their shared first three digits
The strict ordinal decade1601 to 1610counting in tens from year 1, the 161st decade runs 1601 to 1610
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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