# \[F\] Mp3tag 2.81 changes file creation date

**URL:** https://community.mp3tag.de/t/f-mp3tag-2-81-changes-file-creation-date/18808
**Category:** Fixed Bugs
**Tags:** bug-fixed
**Created:** [March 16, 2017, 3:39am UTC](https://community.mp3tag.de/t/f-mp3tag-2-81-changes-file-creation-date/18808 "2017-03-16T03:39:40Z")
**Posts on this page:** 1
**Showing post:** 1

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### Author: ![TAVOR21](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/t/9e8a1a/32.png) [@TAVOR21](https://community.mp3tag.de/u/TAVOR21)
#### Post date: [March 16, 2017, 3:39am UTC](https://community.mp3tag.de/t/f-mp3tag-2-81-changes-file-creation-date/18808/1 "2017-03-16T03:39:40Z")

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hey guys,

i was just in the middle of setting up my media library in foobar with playback statistics by creating an action to write the file creation date %\_file\_create\_datetime% to %added%, so i can import it in foobar. thats when i noticed something odd: since i force-sorted my autoplaylists by date-added and the date-added was now the date-created, the files kept moving further and further down everytime i changed a tag. upon looking closer i found mp3tag was changing the file creation date by +1 hour each time i saved the file!  
the weird thing is, among roughly 10 files i tested (with various attributes) there were 2 files that were not affected by this. i have tested for length, bitrate, year (tag and filestamp), no tags, no cover, id3-version, renaming the file itself, different directory, rebooting, deleting mp3tag config - until i decided to just reinstall v2.77 and thats when the problem stopped. these were all mp3s by the way.  
after i found the problem i decided to test for system time and whether my time zone has something to do with this, this is where it gets weird again: so apparently this bug only occurs between utc -2 and utc +3. so -1, 0, +1 and +2. curiously, it always moves 1 hour forward. and again, the same 2 files were completely immune to this.

anyway, i think this is important to address as fast as possible, some people might lose valuable information from this bug!! i almost wrecked an entire years worth of files if i hadnt tested it first.

bug occurs on v2.81 and v2.81a

EDIT: i forgot to mention, i always use the option "preserve file modification time". so when i turned that off, it also stopped changing the creation date - but then of course it changes the modification date ![<_<](https://community.mp3tag.de/uploads/default/original/1X/5996dbb474c88b8f9fc49f09dc3858d081055a2d.gif "<\_<") .... so i had to test further because for me thats not an option.

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