CODEWITHSUNDEEP
iosobjective-c.nettimestampnsdate
Aaron Wojnowski
Aaron Wojnowski

Reputation: 6480

NSDate From .NET Ticks Since Jan 1, 0001

I'm working with an API that returns timestamps in .NET ticks format which I believe is 100 nanoseconds since Jan 1, 0001. This ends up with an extremely large number such as 635492330000000 (just typing from memory).

When I get the number from the API it's in NSNumber but it's too big to convert to an Integer on a 32 bit device to do math and convert it into seconds. How can I convert it to an NSDate?

Upvotes: 1

Views: 199

Answers (1)

codester
codester

Reputation: 37189

Use long long it can handle the large number like this.You can Convert from NSSNumber NSLog(@"%lld", [date longlongValue]);

Convert it to date.

NSNumber *dateNumber = @(635492330000000);   //Your Number
NSDate *date =  [NSDate dateWithTimeIntervalSince1970: ([dateNumber longLongValue]-621355968000000L)/10000.0];  //621355968000000L are ticks

This will calculate from 1 January 0001 This will give date as 2014-10-18 12:43:20 +0000

Upvotes: 1

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