In AGOA, task timings are shown as an offset from the flight's arrival or departure, using the letters A and D. Common formats:
A+ X: X minutes after arrival (for example, A+5 = 5 minutes after arrival)
D- X: X minutes before departure (for example, D-01:00 = 1 hour before departure)
The A and D values also determine which tasks are displayed for a flight:
For arrival-only flights, only tasks with A timings (for example, A+ or A-) are displayed.
For departure-only flights, only tasks with D timings (for example, D+ or D-) are displayed.