chore(server): Move api-server in to it's own DIR

api-server/server/utils/date-utils.js

@@ -0,0 +1,11 @@
+import moment from 'moment-timezone';
+
+// day count between two epochs (inclusive)
+export function dayCount([head, tail], timezone = 'UTC') {
+  return Math.ceil(
+    moment(moment(head).tz(timezone).endOf('day')).diff(
+      moment(tail).tz(timezone).startOf('day'),
+      'days',
+      true)
+    );
+}