[RFD] divecomputer time/date synchronization while downloading dives

[Miika Turkia]

On Thu, Jul 20, 2017 at 6:52 AM, Dirk Hohndel <dirk at hohndel.org> wrote:
> Sorry for top post.
>
> How about when you tap the button / check the box that enables time since,
> we open a pop-up with the current time and ask the user to confirm?
> Yeah, I know. Pop-ups are evil. But this does seem like one of those cases
> where maybe it's worth it? Because I like the time sync idea.

I could live with the popup but it might get annoying if this pops up
every time I do the sync during a dive trip.

Linus, this popup would be while selecting the timesync on Subsurface
UI, or clicking the download button, depending on how it would be
implemented. So not yet in libdc.

> There is one flaw, though, now that I think about it. Usually you download
> your dives after a day of diving. They may not be the best time to adjust
> the time zone...

Do we get the current time from the DC. If so, we could automatically
adjusting the time of the downloaded dives. Or something else
cleverness. I have had one DC on incorrect time more than once at the
start of dive trip. Wristwatch type DC is always set to local time but
the bulky ones that are in hand luggage might get forgotten :(

miika
>
> --
> From my phone
> ________________________________
> From: Miika Turkia
> Sent: Wed Jul 19 20:45:03 PDT 2017
> To: Linus Torvalds
> Cc: Subsurface Mailing List , Dirk Hohndel , Jef Driesen , devel
> Subject: Re: [RFD] divecomputer time/date synchronization while downloading
> dives
>
> On Wed, Jul 19, 2017 at 11:08 PM, Linus Torvalds
> <torvalds at linux-foundation.org> wrote:
>>
>>
>>  Anyway, what this all builds up to is that I'd actually like to just
>>  set the time automatically when I connect the dive computer to my
>>  laptop (or my cellphone, for that matter - usually those end up being
>>  synchronized to the local time quite nicely).
>
>
> I do like the idea, but I am hesitant about syncing the time with
> laptop automatically. That is because it usually takes a few days for
> me to update my timezone. Even with the manual time sync, it has
> happened to me once that I synced wrong time to my DC. Also with my
> tablet, there is no automatic timezone changes so the mobile version
> might also be missing the correct time.
>
>>  But I suspect people will hate that patch because it does that time
>>  sync thing *unconditionally*. It would be good to have a check-box and
>>  some way to actually set the "sync time" flag. But for that to happen,
>>  we'd need not just the UI side, we'd need to have the libdivecomputer
>>  interface too.
>
>
> I am thinking about a nagging popup in case we have not been diving in
> more than a day to remind to set the timezone correctly on computer
> before syncing the time (if enabled). Or something less annoying for
> the incompetent people who cannot keep their timezones :D Maybe just a
> checkbox on the download dialog to enable this feature per DC
> connection - maybe even remember the setting until no-fly clears.
>
> miika