Online alarm clock for 3:12 am
While you wait for the appointed moment, keep an eye on 3:12 am and use the remaining time to prepare your telescope for observations at Tekapo. You have 48 minutes before 4:00 am, enough to check the mount, arrange eyepieces, and place anything you will need within easy reach. Setting the alarm now lets you concentrate on those quiet preparations without repeatedly checking the clock.
As the telescope gear comes together, leave this alarm page active in the foreground when practical. A browser may reduce activity on a page moved into the background, which can affect when its sound plays. The telescope setup will receive no alarm at all if the browser is no longer running or the phone or computer has gone to sleep. Keep the page visible, turn the sound up to a level you can hear outside, and confirm that audio is allowed before returning to the equipment.
Preparing for a Tekapo observation at 3:12 am can easily disturb people sleeping elsewhere in the house. Choose a restrained alarm volume, keep the phone close, and disable vibration if it will rattle against a hard surface. Gather warm layers, keys, and telescope accessories beforehand so the alarm marks the moment to move rather than the start of noisy searching through cupboards.
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