How many hours between 6:00 PM and 10:00 PM?
4 hours (240 minutes).
From 6:00 PM, counting forward on the clock to 10:00 PM, is 4 hours — 240 minutes.
If these are your bedtime and wake-up time, the sleep calculator lines the alarm up with a full sleep cycle. Comparing across zones instead? See time difference between cities.
There are 4 hours between 6:00 PM and 10:00 PM — that is 240 minutes.
No overnight wrap needed — 10:00 PM is later the same day, 4 hours after 6:00 PM.
If 6:00 PM is your bedtime and 10:00 PM your alarm, that is 4 hours in bed — below the 7–9 hours most adults need, so you may wake up short on rest. The catch is actually getting up at 10:00 PM; see the sleep calculator to line the wake-up time up with a full sleep cycle.
Not because it rings louder. Because it removes every way your half-asleep brain talks you back into bed.
Swiping an alarm away is a reflex you can perform while still asleep. A mission needs your thinking brain switched on — and once it is on, sinking back under is much harder.
Force-quit the app, restart the phone, flip it to silent, turn the volume down. The alarm re-arms and keeps going until the mission is actually done.
Photo and barcode missions are anchored to a spot in another room, so the only way to stop the noise is to stand up and walk there. You cannot pre-stage it from bed.
A sleep forecast before bed, bedtime reminders and wake-up streaks — because the 6 AM problem usually starts at 1 AM.
Captain Wake makes you complete a real-world mission to turn the alarm off — no snooze, no swipe-and-sleep.