Not sure what age your LO is now but my personal approach is cold turkey to new time, move all naps, meals etc to the 'right' time on the new clock and just hang in there until it settles. At some point (variable length of time) they do crash and catch on!
Must admit I'm slightly confused by what you wrote though....did you basically just ignore the time change and put LO down an hour (clock time) earlier than usual? So at their normal 'body clock time'? In which case I'm not sure what you expected would happen?? I would suggest just take the plunge, push through to later bedtime, push through to normal nap time (i.e. an hour later i.e. normal clock time but on new time zone) and just keep going until he sorts himself out
