How to check what time it is?

I have live streams that are scheduled for certain times I would like the poster screen to vary depending on when the stream is live.

How do I get the current time?
If the roku does not have a system time, can I check some time keeper server?

http://sdkdocs.roku.com/display/sdkdoc/roDateTime

date = CreateObject("roDateTime")
print "The date is now "; date.AsDateString("long-date")

More methods detailed here:
http://sdkdocs.roku.com/display/sdkdoc/ifDateTime

thank you very much :grinning_face_with_smiling_eyes: