Add utils for time comparison, add css reset to index

src/Utils/index.ts

@@ -0,0 +1 @@
+export { Utils, IndiaTZName } from './utils';

src/Utils/utils.ts

@@ -0,0 +1,23 @@
+import * as moment from 'moment-timezone';
+
+export const IndiaTZName = 'Asia/Kolkata';
+
+export class Utils {
+    static createTodayDateInIndiaTZ(): moment.Moment {
+        return moment.tz(moment.tz.guess()).tz(IndiaTZName);
+    }
+
+    static createDateFromEpochInIndiaTZ(dateEpoch: number): moment.Moment {
+        return moment.unix(dateEpoch).tz(IndiaTZName);
+    }
+
+    static checkSameDayInSameTZ(moment1: moment.Moment, moment2: moment.Moment, raiseErrorTZMismatch: boolean = true) {
+        // tslint:disable-next-line:triple-equals
+        if (raiseErrorTZMismatch && (moment1.tz() != moment2.tz())) {
+            throw new Error('Timezones don\'t match');
+        }
+
+        // tslint:disable-next-line:triple-equals
+        return (moment1.clone().startOf('day').format() == moment2.clone().startOf('day').format());
+    }
+}

src/index.css

@@ -1,5 +1,15 @@
-body {
+*,*::before,*::after {
+  box-sizing: border-box;
+}
+
+html, body {
   margin: 0;
   padding: 0;
+
+  width: 100%;
+  height: 100%;
+}
+
+body {
   font-family: sans-serif;
 }