iOS development 13-bit timestamp conversion time

Source: Internet
Author: User

First type:

NSString * timestampstring = @ "1423189125874";
NSDate *date = [nsdate datewithtimeintervalsince1970:[timestampstring Doublevalue]/1000];
NSLog (@ "%f", ([Date timeIntervalSince1970] * 1000.0));


The second type:

NSString * timestampstring = @ "1423189125874";
Nstimeinterval _interval=[[timestampstring Substringtoindex:10] doublevalue];
NSDate *date = [NSDate datewithtimeintervalsince1970:_interval];
NSLog (@ "%@", date);


Format time:

   nsstring * timestampstring = @ "1423189125874";
   nstimeinterval _interval=[timestampstring Doublevalue]/1000.0;
   nsdate *date = [NSDate datewithtimeintervalsince1970:_interval];
   nsdateformatter *objdateformat = [[NSDateFormatter alloc] init];
   [objdateformat setdateformat:@ "Yyyy-mm-dd HH:mm:ss. SSS "];
   nslog (@ "%@", [Objdateformat stringfromdate:date]);

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