Fix: Onboarding - "Getting started" section is missing after selecting Other accounting system

src/libs/actions/Policy/Policy.ts

@@ -155,8 +155,8 @@ import type {OnyxCollection, OnyxCollectionInputValue, OnyxEntry, OnyxUpdate} fr
 import type {TupleToUnion, ValueOf} from 'type-fest';
 
 /* eslint-disable max-lines */
+import {formatInTimeZone} from 'date-fns-tz';
 import {addDays} from 'date-fns/addDays';
-import {formatDate} from 'date-fns/format';
 import {subMinutes} from 'date-fns/subMinutes';
 import {PUBLIC_DOMAINS_SET, Str} from 'expensify-common';
 import Onyx from 'react-native-onyx';
@@ -5888,8 +5888,9 @@ function upgradeSubmit(
     type UpgradeSubmitOnyxKey = typeof ONYXKEYS.COLLECTION.POLICY | typeof ONYXKEYS.NVP_FIRST_DAY_FREE_TRIAL | typeof ONYXKEYS.NVP_LAST_DAY_FREE_TRIAL;
 
     const now = new Date();
-    const optimisticFirstDayFreeTrial = formatDate(subMinutes(now, 1), CONST.DATE.FNS_DATE_TIME_FORMAT_STRING);
-    const optimisticLastDayFreeTrial = formatDate(addDays(now, 30), CONST.DATE.FNS_DATE_TIME_FORMAT_STRING);
+    // Match the backend's UTC DB timestamp format for optimistic trial dates.
+    const optimisticFirstDayFreeTrial = formatInTimeZone(subMinutes(now, 1), 'UTC', CONST.DATE.FNS_DATE_TIME_FORMAT_STRING);
+    const optimisticLastDayFreeTrial = formatInTimeZone(addDays(now, 30), 'UTC', CONST.DATE.FNS_DATE_TIME_FORMAT_STRING);
 
     const policyID = policy?.id ?? CONST.POLICY.ID_FAKE;
     const currentUserLogin = currentUserEmail ?? '';

src/pages/home/GettingStartedSection/utils/isWithinGettingStartedPeriod.ts

@@ -1,5 +1,7 @@
 import CONST from '@src/CONST';
 
+import {fromZonedTime} from 'date-fns-tz';
+
 const SIXTY_DAYS_MS = 60 * CONST.DATE.SECONDS_PER_DAY * CONST.MILLISECONDS_PER_SECOND;
 
 /**
@@ -11,7 +13,12 @@ function isWithinGettingStartedPeriod(firstDayFreeTrial: string | undefined): bo
         return false;
     }
 
-    const trialStartMs = new Date(firstDayFreeTrial).getTime();
+    // Trial dates are UTC DB timestamps without a timezone suffix, so parse them as UTC.
+    const trialStartMs = fromZonedTime(firstDayFreeTrial, 'UTC').getTime();
+    if (Number.isNaN(trialStartMs)) {
+        return false;
+    }
+
     const elapsed = Date.now() - trialStartMs;
     return elapsed >= 0 && elapsed <= SIXTY_DAYS_MS;
 }