Windows 11 wont allow you to remove the time from the lock screen, nor will it allow you to customize it.
You'll need to search for a 3rd party app, if there even is one.
The only options that I am aware of for the clock is the regional format settings.
Settings>Time & Language>Language & Region
Click "Regional Format"
Adjust as required.
5 x LG 25MS500-B - 1 x 24MK430H-B - 1 x Wacom Pro 22" Touch Screen Tablet
Screen Resolution
All over the place
Hard Drives
Too many to list.
OS on Samsung 1TB 870 QVO SATA
PSU
Silverstone 1500
Case
NZXT Phantom 820 Full-Tower Case
Cooling
Noctua NH-D15 Elite Class Dual Tower CPU Cooler / 6 x EziDIY 120mm / 2 x Corsair 140mm somethings / 1 x 140mm Thermaltake something / 2 x 200mm Corsair.