Index: node_modules/d3-time/src/day.js
===================================================================
--- node_modules/d3-time/src/day.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-time/src/day.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,35 @@
+import {timeInterval} from "./interval.js";
+import {durationDay, durationMinute} from "./duration.js";
+
+export const timeDay = timeInterval(
+  date => date.setHours(0, 0, 0, 0),
+  (date, step) => date.setDate(date.getDate() + step),
+  (start, end) => (end - start - (end.getTimezoneOffset() - start.getTimezoneOffset()) * durationMinute) / durationDay,
+  date => date.getDate() - 1
+);
+
+export const timeDays = timeDay.range;
+
+export const utcDay = timeInterval((date) => {
+  date.setUTCHours(0, 0, 0, 0);
+}, (date, step) => {
+  date.setUTCDate(date.getUTCDate() + step);
+}, (start, end) => {
+  return (end - start) / durationDay;
+}, (date) => {
+  return date.getUTCDate() - 1;
+});
+
+export const utcDays = utcDay.range;
+
+export const unixDay = timeInterval((date) => {
+  date.setUTCHours(0, 0, 0, 0);
+}, (date, step) => {
+  date.setUTCDate(date.getUTCDate() + step);
+}, (start, end) => {
+  return (end - start) / durationDay;
+}, (date) => {
+  return Math.floor(date / durationDay);
+});
+
+export const unixDays = unixDay.range;