1 function d3_time_range(floor, step, number) {

     2   return function(t0, t1, dt) {

     3     var time = floor(t0), times = [];

     4     if (time < t0) step(time);

     5     if (dt > 1) {

     6       while (time < t1) {

     7         var date = new Date(+time);

     8         if (!(number(date) % dt)) times.push(date);

     9         step(time);

    10       }

    11     } else {

    12       while (time < t1) times.push(new Date(+time)), step(time);

    13     }

    14     return times;

    15   };

    16 }