Stampa:IsLeapYear

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Usage:

{{IsLeapYear|year}}

year defaults to Stampa:Evaldemo.

Formula:

{{#expr: ((({{{1}}}) mod 4 = 0) and (({{{1}}}) mod 100 != 0)) or (({{{1}}}) mod 400 = 0)}}

Use {{subst:IsLeapYear}} to get this code ready for optional substitution into another template.

Sanity check:

Stampa:Evaldemo/3, 2007 is no leap year.

Stampa:Evaldemo/3, 2008 is a leap year.

Stampa:Evaldemo/3, 2100 is no leap year.

Stampa:Evaldemo/3, 2400 is a leap year.

Stampa:Evaldemo/3, proleptic Gregorian calendar.

Stampa:Evaldemo/3 for 101 BC (mostly pointless).

Stampa:Evaldemo/3, guess why.

Results for fractions like Stampa:Evaldemo/3 are unspecified, even if it apparently gives an "expected" result at the moment this might change without notice.