Combine date and time when date is a DateTime and time is a string

Question

I am working with an old mysql database in which a date is stored (without a time) as a datetime and a time is stored as a string (without a date).

In C# I then have a D

Answer 1

var dt = new DateTime(2010, 06, 26); // time is zero by default
var tm = TimeSpan.Parse("01:16:50");
var fullDt = dt + tm; // 2010-06-26 01:16:50