How to check if a date has passed in C#?

Question

I\'m reading the date expires cookie (2 hours) from database, and I need to check if this date has passed. What\'s the best way to do this?

For example:

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Answer 1

public bool HasExpired(DateTime now)
{
    string expires = ReadDateFromDataBase(); // output example: 21/10/2011 21:31:00
    DateTime Expires = DateTime.Parse(expires);
    return now.CompareTo(Expires.Add(new TimeSpan(2, 0, 0))) > 0;
}

But since DateTime.Now is very fast and you don't need to pass it as function parameter...

public bool HasExpired()
{
    string expires = ReadDateFromDataBase(); // output example: 21/10/2011 21:31:00
    DateTime Expires = DateTime.Parse(expires);
    return DateTime.Now.CompareTo(Expires.Add(new TimeSpan(2, 0, 0))) > 0;
}