# BUG... Duration calculations

**URL:** <https://discussions.flightaware.com/t/bug-duration-calculations/6757>\
**Category:** General\
**Created:** [December 20, 2008, 12:29am UTC](https://discussions.flightaware.com/t/bug-duration-calculations/6757 "2008-12-20T00:29:55Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![adhockey](https://avatars.discourse-cdn.com/v4/letter/a/838e76/32.png) [@adhockey](https://discussions.flightaware.com/u/adhockey)\
**Post date:** [December 20, 2008, 12:29am UTC](https://discussions.flightaware.com/t/bug-duration-calculations/6757/1 "2008-12-20T00:29:55Z")

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The Duration calculation is not taking time zone differences into account. It is just doing a time2-time1 difference.

For your consideration, please view the durations for previous flights in the lower right hand corner of the screen:  
[http://flightaware.com/live/flight/N468TT](http://flightaware.com/live/flight/N468TT)

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**Author:** ![mduell](https://sea1.discourse-cdn.com/flex019/user_avatar/discussions.flightaware.com/mduell/32/115680_2.png) [@mduell](https://discussions.flightaware.com/u/mduell)\
**Post date:** [December 21, 2008, 12:23am UTC](https://discussions.flightaware.com/t/bug-duration-calculations/6757/2 "2008-12-21T00:23:45Z")

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The durations look correct to me; which one doesn’t match the stated departure/arrival times?

The departure or arrival time for the most recent flight appears erroneous; probably a late departure message or an early arrival message.

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**Author:** ![lieberma](https://avatars.discourse-cdn.com/v4/letter/l/58f4c7/32.png) [@lieberma](https://discussions.flightaware.com/u/lieberma)\
**Post date:** [December 21, 2008, 3:40am UTC](https://discussions.flightaware.com/t/bug-duration-calculations/6757/3 "2008-12-21T03:40:37Z")

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> [@mduell](#):
>
> The durations look correct to me; which one doesn’t match the stated departure/arrival times?
> 
> The departure or arrival time for the most recent flight appears erroneous; probably a late departure message or an early arrival message.

Mark,

If I understand the original question, looking at actual, it shows a 6 minute flight in the below image.

 ![](https://us1.discourse-cdn.com/flex019/uploads/flightaware/original/3X/2/0/20b6a03f4916d0ecb2a4970a5468face67afbab9.jpeg)

Track log doesn’t match the actual times posted to the right in the above image at [flightaware.com/live/flight/N468 … M/tracklog](http://flightaware.com/live/flight/N468TT/history/20081130/2141Z/KTLH/KFCM/tracklog)

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**Author:** ![adhockey](https://avatars.discourse-cdn.com/v4/letter/a/838e76/32.png) [@adhockey](https://discussions.flightaware.com/u/adhockey)\
**Post date:** [December 22, 2008, 5:34pm UTC](https://discussions.flightaware.com/t/bug-duration-calculations/6757/4 "2008-12-22T17:34:16Z")

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lieberma, you are correct. I know an Epic is fast, but given the distance involved… 😮