static date_type local_dst_start_day(year_type year)
{
if (year >= year_type(2007)) {
//second sunday in march
nkday ssim(nkday::second, Sunday, gregorian::Mar);
return ssim.get_date(year);
} else {
//first sunday in april
fkday fsia(Sunday, gregorian::Apr);
return fsia.get_date(year);
}
}
static date_type local_dst_start_day(year_type year)
{
//first sunday in april
fkday fsia(Sunday, gregorian::Apr);
return fsia.get_date(year);
}