Addresses @AlanCui4080's review feedback about the manual date calculation. Uses SimpleDateFormat to eliminate the hand-written calendar math (regex + days-from-epoch calculation). Avoids java.time since it requires desugaring on minSdk 24, keeping dependencies minimal. Before: 23 lines of manual day-from-epoch calculation After: 7 lines using SimpleDateFormat Ref: https://github.com/rt-bishop/Look4Sat/pull/233#discussion_r1868599947