How to save a timestamp using NodaTime?

I have the following implementation using basic UtcNow, and then converting it back to the UI. The purpose in this scenario is very simple. When I insert a new client to the database, I convert it to UtcNow, so I have a timestamp of this record. When I show it back to the user, I convert it to Local (eg: You are member since "dd/MM/yyyy").

Here is my implementation. I would like to know how do I get this done through NodaTime. And also, if anyone has a better approach for doing it, I'll be glad to hear!

public interface IDateTime
{
    DateTime ToUtcNow { get; }
    DateTime FromUtc(DateTime dateTimeToConvert);
}

public class DateTimeProvider : IDateTime
{
    public DateTime ToUtcNow
    {
        get { return DateTime.UtcNow; }
    }

    public DateTime FromUtc(DateTime dateTimeToConvert)
    {
        return dateTimeToConvert.ToLocalTime();
    }
}

Also, how should I save it to database, in this case Sql Server. What data type should I use? DateTime, DateTimeOffset? What about in code? OffsetDateTime, ZonedDateTime I am very confused about that. I have read the userguide, but it shows more complex scenarios that I'am not getting to implement it in such a simple scenario.

Thanks in advance!