Show full timestamp on hover (#714)

* Show full timestamp on hover

* Not always display time

* Always show full timestamp in search

src/app/atoms/time/Time.jsx

@@ -0,0 +1,44 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+
+import dateFormat from 'dateformat';
+import { isInSameDay } from '../../../util/common';
+
+function Time({ timestamp, fullTime }) {
+  const date = new Date(timestamp);
+
+  const formattedFullTime = dateFormat(date, 'dd mmmm yyyy, hh:MM TT');
+  let formattedDate = formattedFullTime;
+
+  if (!fullTime) {
+    const compareDate = new Date();
+    const isToday = isInSameDay(date, compareDate);
+    compareDate.setDate(compareDate.getDate() - 1);
+    const isYesterday = isInSameDay(date, compareDate);
+
+    formattedDate = dateFormat(date, isToday || isYesterday ? 'hh:MM TT' : 'dd/mm/yyyy');
+    if (isYesterday) {
+      formattedDate = `Yesterday, ${formattedDate}`;
+    }
+  }
+
+  return (
+    <time
+      dateTime={date.toISOString()}
+      title={formattedFullTime}
+    >
+      {formattedDate}
+    </time>
+  );
+}
+
+Time.defaultProps = {
+  fullTime: false,
+};
+
+Time.propTypes = {
+  timestamp: PropTypes.number.isRequired,
+  fullTime: PropTypes.bool,
+};
+
+export default Time;