Set the alarm clock for 11:40 am

How to use the online alarm clock

As you hand over your current task, an alarm for 11:40 am can mark the moment to leave and join the volunteer beach clean-up. It gives you a clear changeover point without repeatedly checking the clock, while still leaving a short window before 12:00 pm to collect your gloves, refill a water bottle and reach the meeting place.

Before heading out, check where your phone is sending its audio. Headphones left connected in a pocket or bag can receive the alarm while the room stays quiet, so use the preview to confirm that the sound comes from the speaker you expect and set a noticeable volume. A browser alarm will not protect your beach clean-up arrival if its page stops running or the phone falls asleep before 11:40 am, so keep the page active and the phone awake until it rings.

Because the clean-up begins near the end of the morning, leave some breathing room before whatever follows later that day. Allow for washing sand from your hands, packing muddy footwear separately and travelling back from the coast. Treat 11:40 am as the start of that wider block, not merely the departure signal; the spare time afterwards prevents a slightly delayed volunteer handover from squeezing your next commitment.