Converting a string to a DateTime in VB.net - vb.net

Question

I am writing an application to take SNMP data from an APC UPS and I want to do something with that data.
A few of the bits of information that I'm getting come in this format:
0d 2h 5m 45s 0ms
I want to be able to do something if that value goes under 30 minutes (total time - including the days and hours).
If I can get that string to be converted into a DateTime, then I can perform calculations on it.
I guess I'm looking to add that string to Now()... that way I can query how far in the future it is.
I hope that makes sense?
In my head the code looks something like this:
Dim timeNow As DateTime = Now
Dim snmpRuntimeRemaining As DateTime = Now + snmpDataTime
Dim runtimeRemaining As TimeSpan = snmpRuntimeRemaining - timeNow
If runtimeRemaining.TotalMinutes >= 30 Then Do Something

Answer 1

To add to .Now():
var t = new TimeSpan(days, hours, minutes, seconds, milliseconds);
var d = DateTime.Now + t;
Days, hours etc. you can get using a named Regex groups:
var r = new Regex(#"(?<days>\d+)d (?<hours>\d+)h...");
var m = r.Match(input);
var days = m.Groups["days"].Value;
PS You don't need to actually add to .Now, you can just do:
var t1 = (as above)
var t2 = Timespan.FromMinutes(30);
if(t1 < t2) doSth(); // if timespan from string is less (shorter) than 30 minutes
Code is in C#, but I think you can adapt it easily :)

Answer 2

I went a slightly different route away from Regex, and it needs tidying up - but this here is how I did it:
Dim snmpTimeDate As String = "0d 2h 5m 45s 0ms"
Dim split() As String = snmpTimeDate.Split(" ")
Dim days As String = split(0).Replace("d", "")
Dim hours As String = split(1).Replace("h", "")
Dim minutes As String = split(2).Replace("m", "")
Dim seconds As String = split(3).Replace("s", "")
Dim miliseconds As String = split(4).Replace("ms", "")
Dim snmpToTimeSpan = New TimeSpan(days, hours, minutes, seconds, miliseconds)
Dim snmpDateTime = DateTime.Now + snmpToTimeSpan
Dim runtimeRemaining As TimeSpan = snmpDateTime - DateTime.Now
If runtimeRemaining.TotalMinutes >= 30 Then Do Something
Thanks to Gerino for his help!