adding esp8266-react's latest NTP library

interface/src/ntp/TimeFormat.ts

@@ -1,5 +1,45 @@
-import moment, { Moment } from 'moment';
+import parseMilliseconds from 'parse-ms';
 
-export const formatIsoDateTime = (isoDateString: string) => moment.parseZone(isoDateString).format('ll @ HH:mm:ss');
+const LOCALE_FORMAT = new Intl.DateTimeFormat('default', {
+  day: 'numeric',
+  month: 'short',
+  year: 'numeric',
+  hour: 'numeric',
+  minute: 'numeric',
+  second: 'numeric',
+  hour12: false
+});
 
-export const formatLocalDateTime = (moment: Moment) => moment.format('YYYY-MM-DDTHH:mm');
+export const formatDateTime = (dateTime: string) => {
+  return LOCALE_FORMAT.format(new Date(dateTime.substr(0, 19)));
+}
+
+export const formatLocalDateTimeNow = () => {
+  return formatIsoDateTime(new Date()).substr(0, 19);
+}
+
+export const formatLocalDateTime = (dateTime: string) => {
+  return formatIsoDateTime(new Date(dateTime)).substr(0, 19);
+}
+
+export const formatIsoDateTime = (date: Date) => {
+  return new Date(date.getTime() - date.getTimezoneOffset() * 60000).toISOString().slice(0, -1);
+}
+
+export const formatDuration = (duration: number) => {
+  const { days, hours, minutes, seconds } = parseMilliseconds(duration * 1000);
+  var formatted = '';
+  if (days) {
+    formatted += days + ' days ';
+  }
+  if (formatted || hours) {
+    formatted += hours + ' hours ';
+  }
+  if (formatted || minutes) {
+    formatted += minutes + ' minutes ';
+  }
+  if (formatted || seconds) {
+    formatted += seconds + ' seconds';
+  }
+  return formatted;
+}