nsdate - Objective-c timeIntervalSince1970 return 0 -

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nsuinteger currenttime = [[nsdate date] timeintervalsince1970];

here current time 0. can tell me reason this?

  nsuinteger currenttime = [[nsdate date] timeintervalsince1970];   nslog(@"%d",currenttime);

this gives me correct value of current time in milliseconds .


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