GLib.Date.is_leap_year

function is_leap_year(year: GLib.DateYear): Boolean {
    // Gjs wrapper for g_date_is_leap_year()
}
  

Returns true if the year is a leap year.

For the purposes of this function, leap year is every year divisible by 4 unless that year is divisible by 100. If it is divisible by 100 it would be a leap year only if that year is also divisible by 400.