use timezone everywhere

src/app/dashboard/dashboard.html

@@ -56,7 +56,7 @@
       </div>
       <div class="row" *ngFor="let recentTx of recentTxs" [routerLink]="'/accounts/'+recentTx.account.id+'/transactions'" [ngClass]="{hidden: recentTx.hidden}">
         <div class="col-3 col-md-2 date">
-          {{recentTx.tx.date | date:"M/d"}}
+          {{recentTx.tx.date | datetz:"M/D":org.timezone}}
         </div>
         <div class="col-5 col-md-6 description">
           {{recentTx.tx.description}}

src/app/dashboard/dashboard.ts

@@ -7,6 +7,7 @@ import { SessionService } from '../core/session.service';
 import { Transaction, Split } from '../shared/transaction';
 import { Org } from '../shared/org';
 import { Account, AccountTree } from '../shared/account';
+import { Util } from '../shared/util';
 import { TxListPage } from '../transaction/list';
 import { IncomeReport } from '../reports/income';
 import { Observable } from 'rxjs/Observable';
@@ -46,11 +47,12 @@ export class DashboardPage implements OnInit {
   ngOnInit() {
     this.sessionService.setLoading(true);
     this.log.debug('dashboard init');
-    let periodStart = this.accountService.getPeriodStart();
 
     this.org = this.orgService.getCurrentOrg();
     this.log.debug('org', this.org);
 
+    let periodStart = Util.getPeriodStart(this.org.timezone);
+
     let tree$ = this.accountService.getAccountTreeWithPeriodBalance(periodStart);
 
     tree$.do(tree => {