This is Always On Display, MIUI style!
Always On Display is always convenient, you can see time without touching your phone. They are mainly designed for OLED or AMOLED displays (the pixels in black don't consume battery) while IPS displays consume battery even if their pixels are black. But if you want one on your IPS display (keep in mind it's gonna suck up battery). There are third party AODs and l I modified this app- https://play.google.com/store/apps/de... with MIUI font, so you can get the real feel of AOD on your MIUI device.
Note that your screen will stay on, so if your phone has an IPS display it will consume power. You can set it to activate only when your phone's charging (or when it has sufficient battery).
Mi AOD-https://drive.google.com/file/d/1NowK...
Original AOD by Tomer Rosenfeld-https://play.google.com/store/apps/de...
If you wanted something like this for your phone and this really helped, please give a heartly thumbsup and subscribe to support me, 'cause this is what I need most at this time.