How to set only time part of a DateTime variable in C# [duplicate]

I have a DateTime variable:

DateTime date = DateTime.Now;

I want to change the time part of a DateTime variable. But when I tried to access time part (hh:mm:ss) these fields are readonly.

Can't I set these properties?

Solution 1:

Use the constructor that allows you to specify the year, month, day, hours, minutes, and seconds:

var dateNow = DateTime.Now;
var date = new DateTime(dateNow.Year, dateNow.Month, dateNow.Day, 4, 5, 6);

you can't change the DateTime object, it's immutable. However, you can set it to a new value, for example:

var newDate = oldDate.Date + new TimeSpan(11, 30, 55);