Your screenshot is misleading as the Clock icon is not visible in the cropped Control Centre.
There is a Clock icon in Control Center on the iPhone. Tapping it takes you directly to the Alarm tab of the Clock app.
See the pic below
At the top of the Alarm tab, you will also see Sleep Schedule. It is important to understand that Sleep Schedule and a regular Alarm are two different things, even though both appear in the same section of the Clock app.
- Alarm: A regular alarm is primarily meant to alert you at a specific time—for example, to wake you up, remind you of something, or notify you that it is time to do something.
- Sleep Schedule: Sleep Schedule is part of Apple's sleep-tracking system. It is designed to help you establish a regular bedtime and wake-up routine and, when used with the Health and Sleep features, track your sleep patterns and sleep duration.
A Sleep Schedule does not have to be active today to appear in the Alarm tab. For example, suppose you have configured a Sleep Schedule that will start three days from now. That schedule will still be displayed in the Clock app for your reference.
This allows you to view, manage, edit, or change the schedule at any time, even before it becomes active. Seeing a future Sleep Schedule in the Alarm tab therefore does not mean that it is currently running or that it will affect your sleep tonight.
In simple terms:
Alarm = an alert at a particular time.
Sleep Schedule = a planned sleep/wake routine that can also support sleep tracking.
The fact that both are shown together in the Clock app can sometimes be confusing, but they serve different purposes.
