Android :: How To Manipulate Android In Java

I have a question about working with time in java, more specificly in Android.I am developing a device that needs to check to see if an update with a remote server has been done today. I do this by comparing the time (in milliseconds) at midnight last night/this morning with the current time in milliseconds. so my code is as follows:Calendar now = Calendar.getInstance(); long milliseconds = now.getTimeInMillis(); long since_midnight = milliseconds%(86400000); long checkpoint = (milliseconds - since_midnight); however when I convert the checkpoint variable to date using: SimpleDate Format formatter = new SimpleDateFormat("dd/MM/yyyy hh:mm:ss"); last_logged_text=formatter.format(checkpoint);I get a time representational corresponding to 1 am this morning.I realise that this has something to do with daylight savings time but Im unsure how to work around it.