हमसे सीखे कोई जीने का सलीका। सफर कैसा भी हो, मौज़ उडाये जाते हैं।। - Amir

I analysed the EXIF data of these pics :
Date :15th April 2020
Time : 23:47 (Yes, surprised ?)
Device : Redmi Note 5 Pro
Shutter Speed : 1/1908 sec
ISO...
more...

and aperture : 125 and f/2.2
But there's a catch. If you edit the photos using a low grade editing app, then the app will modify this data. It will change the original date and time with the editing time of the picture. These pics were probably edited at 23:47, and then posted here at 23:53. This is the correct explanation. In such tight security, it is not possible for anyone to easily enter MMCT. Few people are also visible in the first pic. Hence the member has actually posted old pics.
Thanks for tagging me