Night HDR?

[AshNZ]

This is one of my absolute favorite picture on Flickr: HDR version of "In the Pink" on Flickr - Photo Sharing!

Title says it's HDR. I would like to try something like this myself and I'm planning on going to this location sometime next week around sunset time. I wonder if there are any differences between day time HDR and late evening/night HDR? This picture I mentioned does not have exif data on it so I can't really analyse it it more detail but my guess is that it was taken within an hour after sunset. So I wonder if there are any differences between day/night HDR. I also like the purple look of the picture - do you think it was done by using split tone in lightroom or through any other means?

[OsmosisStudios]

HDR is HDR: As long as you know what your middle exposure is, you should be able to find the over and under exposures too. The purple colour is likely from the sunset itself

[AshNZ]

Cool, I've tried night HDR but with horrendous results. However, I think it may be cos I tried it at night when it's all dark instead of twilight. Thanks for your input.