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How to save a Time Shift?

asked 2017-11-24 06:15:37 +0000

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Time Shift is used to alter the timestamps of packets in a trace file. In 101.pcapng,the original arrival time was Jul 7, 2017 14:36:56.111000000. I have shifted the arrival time by +3.2 seconds. The new arrival time was Jul 7, 2017 14:36:59.311000000 and save it called 101new.pcapng. When I open the 101new.pcapng, I get the arrival time is the same as 101.pcapng. Although I changed the arrival time by +3.2 seconds and saved, the new arrival time return to the orignal arrival time. Why?


Chen Yun Long

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Did you try marking all of the packets and then exporting them? Didn't try it myself, but it might be worth a try.

proj964 gravatar imageproj964 ( 2017-11-27 22:08:59 +0000 )edit

Neither Save-As nor Export is working on Version 3.6.0 (v3.6.0-0-g3a34e44d02c9) - I did test this. The only permanently working way is editcap mentioned below.

TomcatSilver gravatar imageTomcatSilver ( 2022-01-18 14:11:09 +0000 )edit

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answered 2017-11-24 11:50:59 +0000

Uli gravatar image

Don't know whether it is supported to save time shifted packets in Wireshark.

However I can recommand to use editcap -t 3.2 infile.pcap outfile.pcap for this purpose.

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answered 2017-11-27 14:17:12 +0000

cmaynard gravatar image

updated 2019-01-04 16:56:00 +0000

As far as I can tell, it's not possible to save a time-shifted capture file directly from Wireshark. If you would like to be able to do this, I would suggest opening a Wireshark enhancement bug report at

EDIT: Bug 14306 is tracking progress on this feature.

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Asked: 2017-11-24 06:15:37 +0000

Seen: 5,864 times

Last updated: Jan 04 '19