Sandaysoft

When does Cumulus compute this tag? I would assume at midnight the setting would change, and would stay the same until midnight the next day, but I feel like the value is changing sometime during the day.

-Tom

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Tom Keramidas, Lake Zurich, IL, USA

All webtags and details are listed in the Wiki -


Paul

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Davis Vantage Pro 2 - CWOP DW3930 - WU IONTARIO226 - PWS Weather KOMOKA - AWEKAS 6890
Windows-8
Cumulus v1.9.3 b.1059
www.komokaweather.ca
www.komokaweather.com
www.komokaweather.com/weather/sunrecord ... today.html

Thanks for the reminder but it didn't answer my question.

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Tom Keramidas, Lake Zurich, IL, USA

At start up and then every hour, on the hour.

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Steve
Sanday Weather
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I'm curious, why would it need to be updated hourly? Isn't it just a simple computation based on the following day's sunrise/sunset times?

-Tom

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Tom Keramidas, Lake Zurich, IL, USA

It doesn't need to. All of the astronomical data is recalculated hourly to allow for things like switching to and from daylight savings time, and to keep the moon phase data current. I suspect that for part of the day, for some time zones, the astronomical data is not quite correct (it gets tomorrow's time(s) instead of today's, perhaps) which would explain why the difference figure changes.

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Steve
Sanday Weather
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