System.currentTimeMillis() returns time in UTC or not??????
Hello Friends,
I want to know that "System.currentTimeMillis()" returns time in UTC or Current Local time
ie suppose i set my TimeZone (GMT+ 2)
then statement gives me value in milliseconds by adding 2 hours to the GMT(Is this value should consider as UTC time or we have to subtract and add offset value according to the timezone.
If time value return by statement is in local time and this is not UTC then is there is any provision in Java to convert local time into UTC time ??
Regards
Gaurav
ejp wrote:
It returns 'the difference, measured in milliseconds, between the current time and midnight, January 1, 1970 UTC.'.Which, of course, as I have tried to explain to the OP (but seemingly not very well) that the "current time" referenced must also be the "current time" in UTC. If the starting point is UTC the ending point is UTC (otherwise it doesn't make any sense to measure it that way). I also attempted to tell him that, when he outputs a String representation of that time (i.e. toString or with a DateFormat Object) that the time he sees will be the time according to the TimeZone set in the DateFormat object, or the local timezone when using toString. But, as mentioned, Date objects (and so, essentially, the long value) is always UTC (relevant to the starting point, of course).
A quote from the Date Class
Although the Date class is intended to reflect coordinated universal time (UTC), it may not do so exactly, depending on the host environment of the Java Virtual Machine.which I take to mean that Date is always UTC in so far as the host environment is capable of it.
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I run it like this:
java -cp . Test 500 1
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