Set the alarm for 5:03 a.m.

Web alarm clock for 5:03 a.m.

While you are sorting your bag and travel papers, a 5:03 am alarm can pull you away before you lose track of departure preparations. That gives you a clear cue to head for security before the first inter-island flight, with room to be through the checkpoint by 6:00 am. Keep your ID and boarding pass where you can reach them without unpacking everything.

Because the security check depends on hearing the cue, test the alarm now rather than assuming your phone will sound later. Set it briefly, confirm that the volume is audible over terminal announcements, then restore 5:03 am. Keep this browser session active and your phone awake: if either stops running, the alarm may not interrupt your security preparations. A separate phone alarm is sensible when missing the cue would put the flight at risk.

Once you leave security, use the early hour to protect a small buffer before the day's next commitment. Note the boarding gate, scheduled boarding time, and how long the walk from the checkpoint takes. If there is spare time before 6:00 am, keep it for a gate change, a queue, or a quick check that your documents are still together instead of filling every minute.