Australia New Weather Measurement Day is 9am not Midnight..

[Oz Greg]

This is a good Challenge :)

A very long time ago someone at our Bureau of Meteorology decided that 9am being the start of the working day will also be the START of the next measurement period (usually set as midnight) which causes no end of issues for us but considering we have over 100 years of data this is not going to change so we live with it..

This means for us Aussies..

at 9am on May 3th  to 8:59AM of May 4th - Measurements will be Recorded as May 4th 

at 9am on May 4th  to 8:59AM of May 5th - Measurements will be Recorded as May 5th 

at 9am on May 5th  to 8:59AM of May 6th - Measurements will be Recorded as May 6th 

and End of Month = 9am of the Last Day of the Month

and End of Year = 9am of the Last Day of the Year..

Clearly weewx is setup as midnight being the start of the new period..  Anyone with some suggestions on how to change this?

[Thomas Keffer]

It would be a large project. Not only does weewx (sensibly) assume that a day starts at midnight, so do the underlying Python functions upon which it relies. It would require not only rewriting all of the stats calculations, but also providing alternatives for Python staples such as datetime.datetime (which is used to calculate the start of a month, etc.).

As we used to say about doomed projects at my old company, "We'll put a man on it."

-tk

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[Oz Greg]

Also known as "Adding it to the improvements Register (Which is filed in Bin 13).. " :)

[William Phelps]

One thought comes to mind - change the time zone offset, then fix the time/date in StdConvert or in a new service that runs before any of the others...

William

[Oz Greg]

Funny enough I was thinking of fooling with the time offsets..  You really need a observance date and an actual date..  

[Rakesh R]

Here in India we observe 8:30am to 8:30am.

HELP needed in changing  the current observation start time of 12 midnight to 8:30am 

[Mickael Hoareau]

Hello,

Météo France also uses "Climatological days" for data (7 a.m. to 7 a.m.) for climatological observations.
For comparison purpose, having the possibility to choose how to define "a day" could really be helpfull :)

Personnaly, I would prefer to have archives stored as it is and have the possibility to generate stats for another definition of a "day"

I'd love to give it a try.
Perhaps in the next weeks or months.

[Praveen Chandrasekaran]

Any update on this?