productivitytimezoneremindersremote workJavaAndroidwidgetsmobile appUtilityProductivity
Time Zone Converter
Android
Google Play
About
Timezone conversion and reminder app for distributed teams that need fast city comparisons and cross-zone scheduling.
Problem
Daily utility apps must surface critical information quickly, reliably, and with low-friction repeated usage.
Solution
Delivered a Flutter-first mobile stack with reusable modules, API integration, state management, and release workflows.
Outcome
Production release completed across Google Play.
My Role
Designed and delivered a native Android utility with offline timezone lookup, alarms, reminders, and analytics hooks.
Core Capabilities
- City search with instant timezone conversions
- Cross-zone reminders with lead-time controls
- Offline local storage for saved city lookups
- AlarmManager + WorkManager reminder execution
Architecture
- Java Android stack with modern target SDK coverage
- RecyclerView/ViewPager and material dialogs
- SharedPreferences + Gson persistence
- WorkManager and AlarmManager scheduling
Tech Stack
JavaRecyclerViewViewPagerMaterial ComponentsSharedPreferencesGsonAlarmManagerWorkManagerFirebase AnalyticsFirebase CrashlyticsGoogle Mobile Ads