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Recognised as Decade

2420s

  • 2420-2429
  • 3,653 days
  • 3 leap years
  • 25th century

The 2420s will be the decade from 1 January 2420 to 31 December 2429, 3,653 days in total. It contains 3 leap years (2420, 2424, 2428). Counted strictly from year 1 the decade would run 2421 to 2430; this page uses the common reading.

Span of the decade

First day1 January 2420
Last day31 December 2429
Opened on aWednesday
Closed on aMonday
Days in the decade3,653
Weeks in the decade521 and 6 days
Century25th century

The years of the 2420s

2420Leap year, 366 days
2421Common year, 365 days
2422Common year, 365 days
2423Common year, 365 days
2424Leap year, 366 days
2425Common year, 365 days
2426Common year, 365 days
2427Common year, 365 days
2428Leap year, 366 days
2429Common year, 365 days

Leap years

Leap years2420, 2424, 2428
How many3a decade spanning a skipped century leap year has fewer
Common years7

Unix time

Start of the decade14,200,617,600seconds since 1 January 1970
End of the decade14,516,236,799the last second of 31 December

Where a decade starts

This page uses2420 to 2429the common reading, grouping years by their shared first three digits
The strict ordinal decade2421 to 2430counting in tens from year 1, the 243rd decade runs 2421 to 2430
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 “2420s” by Nerdulator’s date engine. Nothing here was retrieved from a database of answers or written by a model.