Thanks for confirmation. FO synced time after some 3 hours.

Btw, I measured Zero W powering FO: powering them both tops at 0,8w. Runs 
normally at 126 mA 0,63w. That must be perfectly stable.

RPI 3 with LAN powering nothing spends 2,7w booting and 1,5w running.

Na 13. listopada 2019. 17:02:03 CEST, Andrew Milner 
<[email protected]> wrote:
>I believe you are correct
>
>the hardware guide - http://weewx.com/docs/hardware.htm#fousb_notes
>says 
>the clock is ignored by weewx as it cannot be trusted.
>
>
>
>
>On Sunday, 13 October 2019 16:18:02 UTC+3, Pila wrote:
>>
>> I have cut power to a Fine Offset. After a restart, it is still
>waiting to 
>> set the clock automatically. Wrong time may remain for hours if not
>days. I 
>> can not say at the moment, it was 90 minutes ago.
>>
>> According to plots, WeeWx seems to read and interpret the data
>correctly 
>> during this 90 minutes.
>>
>> I would appreciate confirmation if the following statements are true.
>>
>> Wrong time stamps from the weather station are not spoiling the data
>as 
>> being read by the WeeWx. I can leave time be wrong until it is set 
>> automatically. I can not set the FO internal time from a connected
>RPI Zero.
>
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