QFile save to USB drive uses UTC as date modified

[While_e]

Running a BeagleBoneBlack, Debian Jessie, 4.4 Kernel, Qt 5.7

When I use QFile to save a file to a connected USB drive, it uses the UTC time of the system rather than the local time. I haven't seen anything discussed about this, so I'm curious if anyone else has seen/resolved this issue.

# date
Tue Nov  6 11:16:44 EST 2018

# timedatectl
      Local time: Tue 2018-11-06 11:16:54 EST
  Universal time: Tue 2018-11-06 16:16:54 UTC
        RTC time: Tue 2018-11-06 16:16:55
       Time zone: America/New_York (EST, -0500)

So to clarify: If I created a new file at this time, the "date modified" when plugged into another system (Windows/Ubuntu) would reflect 4:16 pm instead of 11:16 am.

Also, if I simply generate a file with vim to the USB it will have the 11:16 am date/time.

[JonB]

@While_e
Oh, I thought all Unixes saved file times in UTC always....

[While_e]

Almost all current version of Unix systems have a way to set 'timezone' and I've never seen any files saved as UTC. Testing between various hosts and clients saving files manually has never caused this.

[aha_1980]

@While_e

Does it matter where you save the file, i.e. is the effect on the local (probably ext3) partition the same?

May it be that timezone is reset within the Qt program? E.g. I know that LC_NUMERIC link is changed after QCoreApplication is set up.

Just an idea...