BibTeX, biblatex and biber ⇒ Time in Source list

[Blaustern_blume153]

Hello,
I have a question regarding the source list. I would like to have the url of an online source followed by the date of viewing and at the end the time of viewing. I tried this with "urldate = {2021-10-19T14:30:00} " ( in the .bib ) but then both the date and time disappear. Does anyone know why this is happening and how to solve it or is this a bug?
With kind regards,
Maya

[Bartman]

More context please.

[Blaustern_blume153]

No Problem but I have to correct myself, I am really sorry. I just looked everything up again to show it you and it does not disapear it does simply nothing.

So this is what is ritten in my .bib:

latex_bib.PNG (6.94 KiB) Viewed 3307 times

And this is what I see when building the file:

latex_bib_backed.PNG (23.75 KiB) Viewed 3307 times

In theorie I would see in the first entry that it was from 17.10.2021 and the third entry would be from 17.10.2021 at 14:30 but I just see the date not the time.
I hope I could make my problem clear.

[Ijon Tichy]

Unfortunately you've ignored the link in Bartman's reply at least partly. Without minimal working example we do even not know, if you are using biblatex or an old BibTeX style. The output is very depending on the used bibliography mechanism.

So I can only tell, that the biblatex manual explains options like dateusetime, <datetype>dateusetime, alldatesusetime. But I cannot know nor test if this is a helpful information in your case.

The old BibTeX styles usually do not handle the time and only some of them provide @online and urldate,