import “interval”; import “time”; import “year”;

d3.time.day = d3_time_interval(function(date) {

var day = new d3_time(2000, 0);
day.setFullYear(date.getFullYear(), date.getMonth(), date.getDate());
return day;

}, function(date, offset) {

date.setDate(date.getDate() + offset);

}, function(date) {

return date.getDate() - 1;

});

d3.time.days = d3.time.day.range; d3.time.days.utc = d3.time.day.utc.range;

d3.time.dayOfYear = function(date) {

var year = d3.time.year(date);
return Math.floor((date - year - (date.getTimezoneOffset() - year.getTimezoneOffset()) * 6e4) / 864e5);

};