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jantenhove / GoodWeLogger

ESP8266 based logger for GoodWe inverters. Can upload to pvoutput and publishes MQTT topics
GNU General Public License v3.0
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Daylight saving time error in PVoutput posts #18

Closed bram2202 closed 4 years ago

bram2202 commented 5 years ago

After the change in DST the posts to PVoutput keeps posting the old datetime.

For example: last weekend DST ended, correct datetime for me is UTC+1. But PVoutput receives UTC+2, and thereby show the data in the live chart 1 hour in the future. Screenshot taken at 11:30

pv_output_1130

Workaround probably is to reset the board, but you need to do this before/after power is generated, otherwise PVoutput wil receive multiple data for the same datetime

jantenhove commented 5 years ago

Time zone settings are hardcoded for now: https://github.com/jantenhove/GoodWeLogger/blob/4a638a97256bc0c7d88c07dab83a9c1134987bc2/Settings.example.h#L38 PVoutput only accepts local time instead of UTC (or any other standard). Maybe there is a library/web service that can return the time offset based on a region.

bram2202 commented 5 years ago

Ok, so i need to change TIMEZONE every 6 months?

jantenhove commented 5 years ago

Yes, or ask pvoutput to support UTC uploads. They already know the region you're in so they can convert the time more easily.

jantenhove commented 5 years ago

When you donate to pvoutput there is a 'Adjust Time' setting for each of your systems to correct for systems that don't support DST. See: https://pvoutput.org/help.html#live-settings-time-adj