The year 2018 is not a leap year.
15th February 2019 will be a Friday.
The year 2019 is not a leap year so there are 28 days in February.
So the number of days after 15th February 2019 to 18th April 2019 are 13 + 31 + 18 = 62
Number of odd days in 62 days = 6
18th April 2019, the day will be Friday + 6 days = Thursday.