I am trying to figure out how to add one day to the current datetime for comparison later. I want to be able to turn of a feature in my app for one day if a user click on a button. So when the set datetime+24 hours is lower than the current datetime it will reactivate.

I know how to get the current datetime like this:

```
static DateTime now = DateTime.UtcNow;  

```

But I want to do this:

```
static DateTime deactivateDate = DateTime.UtcNow+24;

```

Any help is appreciated :-)