Online alarm clock for 2:23 am
As you finish up and head out at 02:23, set this alarm as a backup for accepting an urgent call from your local volunteer fire brigade. The 03:00 hour may mark your next check-in, but this alert keeps the immediate commitment separate from whatever follows. Do not rely on it as the only alert for a brigade call, because the browser alarm cannot sound after its active session has ended.
Before leaving, give the alarm a trial run while there is still time to notice a muted volume, an unsuitable tone, or sound routed to headphones. A short advance check confirms what you will actually hear if the brigade call comes through. Keep the verified setup unchanged afterwards, and retain the brigade pager or established station alert as the primary signal rather than assuming one successful test makes a browser alarm independent.
Leaving for a night call can compress everything planned for later that same day, so preserve a clear buffer after the expected return time. Note the earliest fixed commitment, then allow space for travel back, putting gear away, and changing plans if the incident runs longer. At this hour, placing those details beside the 02:23 alarm helps prevent the next obligation from being scheduled against an unrealistically tight turnaround.