upoCal

# upoCal – Myanmar Uposatha Calendar & Dawn-rise **upoCal** is a free and open-source app for calculating highly accurate solar times and viewing Uposatha dates. All calculations are performed directly on your device. ### Accurate Solar Time Calculations Optional down-to-the-second precision for: • Solar noon • Sunrise and sunset • Civil dawn and dusk • Nautical dawn and dusk ### Dawn-rise (Aruṇuggamana) • Multiple calculation formulas available • Adjustable according to individual preferences and traditions ### Myanmar Uposatha Calendar • View Myanmar Uposatha dates years into the future or past • Monthly timetable view • Yearly calendar view ### Features • Home Screen widgets and lock screen widgets in various sizes • Battery-efficient widget updates • Adjustable dawn-rise(Aruṇuggamana) calculation methods • GPS-based dawn-rise, noon time calculations • Support manual location input • Satellite and street map location preview (Internet connection required) • Dark Mode support • Optional display of times down to the second • Multilingual support • No account required • No advertisements • Open source Designed for practitioners, monastics, and anyone who wishes to follow solar times and Myanmar Uposatha observances with precision.