const dateString = '2021-11-12T02:03:03' const dateObject = new Date(dateString)
That code will produce a date object that will print out this if logged:
Note that the time has moved to Zulu (or GMT) time. That is, the hour shifted from 2 to 7.
Once the date is parsed, you use functions like:
.getFullYear() .getMonth() .getDate()
And all the other ones listed here
Note, this is done without using
Data.parse() which is "strongly discouraged due to browser differences and inconsistencies." (source)