[Ovmsdev] Default values and fields...
Mark Webb-Johnson
mark at webb-johnson.net
Wed Jun 6 16:43:50 HKT 2018
My mac is showing Europe/Berlin as CET-1CEST,M3.5.0,M10.5.0/3. That seems correct.
I think that if local time is showing correct, then the posix time zone string is correct. It is now 8:34am UTC, and 10:34 CEST (Central European Summer Time).
Perhaps VFS is not handling DST correctly? Can you put the SD card in a PC and see what time is shown there? That would tell us if it is the VFS or our handling?
I read the FAT filesystems have no concept of time zone, so timestamps could either be local or utc. Seems messy.
Regards, Mark
> On 6 Jun 2018, at 4:28 PM, Michael Balzer <dexter at expeedo.de> wrote:
>
> Just tested this entry from the list:
> "Europe/Berlin","CET-1CEST,M3.5.0,M10.5.0/3"
> Same problem as with other public examples: local time is correct, but file dates are offset 1 hour into the future.
>
> # con set vehicle timezone "CET-1CEST,M3.5.0,M10.5.0/3"
> Parameter has been set.
>
> # time stat
> Time Zone: CET-1CEST;M3.5.0;M10.5.0/3
> UTC Time: 2018-06-06 08:15:18 UTC
> Local Time: 2018-06-06 10:15:18 CEST
> Provider: ntp
> PROVIDER STRATUM UPDATE TIME
> gsm-nmea 2 12 Wed Jun 6 08:15:18 2018
> *ntp 1 53 Wed Jun 6 08:15:17 2018
>
> # vfs ls /sd
> …
> 5 06-Jun-2018 11:14 testdate
>
> Maybe this is a bug in the vfs.
>
> "CET-2,M3.5.0/02:00:00,M10.5.0/03:00:00" works correctly now but I haven't tested if it would adapt to winter time.
>
> Regards,
> Michael
>
>
> Am 06.06.2018 um 08:56 schrieb Mark Webb-Johnson:
>> A topic on esp32.com <http://esp32.com/> brought up this:
>>
>> https://github.com/nayarsystems/posix_tz_db <https://github.com/nayarsystems/posix_tz_db>
>>
>> The approach seems similar to what I spoke about before (scrape tzdata, although they scrape install zone files directly in /usr/share/zoneinfo). I’ve attached the csv output of that. 460 time zones, about 15KB code size. That is up-to-date with tzdata 2018d-1. Including a simple library wrapper, to (a) iterate over the zone names, and (b) return the posix string for a particular name, probably less than 20KB overhead.
>>
>> I live in such a simple timezone, it is hard for me to judge. Is this any use?
>>
>> Regards, Mark.
>>
>
>
> --
> Michael Balzer * Helkenberger Weg 9 * D-58256 Ennepetal
> Fon 02333 / 833 5735 * Handy 0176 / 206 989 26
> _______________________________________________
> OvmsDev mailing list
> OvmsDev at lists.openvehicles.com
> http://lists.openvehicles.com/mailman/listinfo/ovmsdev
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openvehicles.com/pipermail/ovmsdev/attachments/20180606/2f3048ac/attachment.htm>
More information about the OvmsDev
mailing list