Countdown to the second

[ABG]

Daily Countdown

Here's an old countdown timer from the transition between AI1 and AI2 ... [Designer] [blocks] ByeByeAI.aia (4.0 KB) [Clock1 Timer] [global hours] [emulator] [global Deadline_Instant] [global excess_ms] [global Milliseconds_per_minute] [global MillisecondsToExpiration] [global minutes] [global Seconds] [Running] [Setting the deadline] [start]

You can store the target datetime ms in TinyDB to persist it across runs of the app.