The 18. of 10 in 2040 was a Thursday.
March 24st, 2040 - April 23th, 2040
Yes: 2040 is a leap year, therefore has a 29th of February with an additional leap day and a total of 366 days (instead of the usual 365 days in a normal year).
Note: The chosen date is in the future.
|M = 1000||CM = 900||XC = 90||X = 10||I = 1|