what does '--no-mtime' mean in youtube-dl and don't think youtube-dl respects that. #11538

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opened 2026-02-21 05:00:02 -05:00 by deekerman · 1 comment

deekerman commented

2026-02-21 05:00:02 -05:00

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Originally created by @shirishag75 on GitHub (Aug 19, 2017).

Please follow the guide below

Make sure you are using the latest version: run `youtube-dl --version` and ensure your version is 2017.08.18. If it's not, read this FAQ entry and update. Issues with outdated version will be rejected.

I've verified and I assure that I'm running youtube-dl 2017.08.18

Before submitting an issue make sure you have:

At least skimmed through the README, most notably the FAQ and BUGS sections
Searched the bugtracker for similar issues including closed ones

What is the purpose of your issue?

Bug report (encountered problems with youtube-dl)
Site support request (request for adding support for a new site)
Feature request (request for a new functionality)
Question
Other

[$] youtube-dl --verbose
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'--verbose']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2017.08.18
[debug] Python version 2.7.13 - Linux-4.11.0-1-amd64-x86_64-with-debian-buster-sid
[debug] exe versions: ffmpeg 3.3.3-3, ffprobe 3.3.3-3, rtmpdump 2.4
[debug] Proxy map: {}
Usage: youtube-dl [OPTIONS] URL [URL...]

youtube-dl: error: You must provide at least one URL.
Type youtube-dl --help to see a list of all options.

Now I downloaded the whole playlist from

youtube-dl https://www.youtube.com/playlist?list=PLq6HRovGueR3P8irCLkc9JVKstdmBy4lx -c -f bestvideo+bestaudio

Now while ffmpeg performs and performed flawlessly, the time-stamp it gave to all the videos were from the last 3 days rather than when they were put up originally (youtube's/uploader's time-stamp) . This wasn't the case before. I'm not sure who is at fault, whether it's youtube-dl at fault or ffmpeg.

Also I'm curious about the '--no-mtime' option but as the command-line option doesn't elaborate (nor the documentation on youtube-dl homepage) it's difficult to know what that option is all about.

Looking forward to know.

Originally created by @shirishag75 on GitHub (Aug 19, 2017). ## Please follow the guide below --- ### Make sure you are using the *latest* version: run `youtube-dl --version` and ensure your version is *2017.08.18*. If it's not, read [this FAQ entry](https://github.com/rg3/youtube-dl/blob/master/README.md#how-do-i-update-youtube-dl) and update. Issues with outdated version will be rejected. - [x] I've **verified** and **I assure** that I'm running youtube-dl **2017.08.18** ### Before submitting an *issue* make sure you have: - [x] At least skimmed through the [README](https://github.com/rg3/youtube-dl/blob/master/README.md), **most notably** the [FAQ](https://github.com/rg3/youtube-dl#faq) and [BUGS](https://github.com/rg3/youtube-dl#bugs) sections - [x] [Searched](https://github.com/rg3/youtube-dl/search?type=Issues) the bugtracker for similar issues including closed ones ### What is the purpose of your *issue*? - [ ] Bug report (encountered problems with youtube-dl) - [ ] Site support request (request for adding support for a new site) - [ ] Feature request (request for a new functionality) - [x] Question - [ ] Other --- [$] youtube-dl --verbose [debug] System config: [] [debug] User config: [] [debug] Custom config: [] [debug] Command-line args: [u'--verbose'] [debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8 [debug] youtube-dl version 2017.08.18 [debug] Python version 2.7.13 - Linux-4.11.0-1-amd64-x86_64-with-debian-buster-sid [debug] exe versions: ffmpeg 3.3.3-3, ffprobe 3.3.3-3, rtmpdump 2.4 [debug] Proxy map: {} Usage: youtube-dl [OPTIONS] URL [URL...] youtube-dl: error: You must provide at least one URL. Type youtube-dl --help to see a list of all options. Now I downloaded the whole playlist from youtube-dl https://www.youtube.com/playlist\?list\=PLq6HRovGueR3P8irCLkc9JVKstdmBy4lx -c -f bestvideo+bestaudio Now while ffmpeg performs and performed flawlessly, the time-stamp it gave to all the videos were from the last 3 days rather than when they were put up originally (youtube's/uploader's time-stamp) . This wasn't the case before. I'm not sure who is at fault, whether it's youtube-dl at fault or ffmpeg. Also I'm curious about the '--no-mtime' option but as the command-line option doesn't elaborate (nor the documentation on youtube-dl homepage) it's difficult to know what that option is all about. Looking forward to know.

deekerman closed this issue

2026-02-21 05:00:04 -05:00

deekerman commented

2026-02-21 05:00:06 -05:00

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@dstftw commented on GitHub (Aug 19, 2017):

--help clearly states --no-mtime will disable setting modification time from Last-Modified HTTP header.

--no-mtime                       Do not use the Last-modified header to set
                                 the file modification time

@dstftw commented on GitHub (Aug 19, 2017): `--help` clearly states `--no-mtime` will disable setting modification time from `Last-Modified` HTTP header. ``` --no-mtime Do not use the Last-modified header to set the file modification time ```

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