not sure yet why the two modules differ here

Astro::Coords returns the next sunrise/sunset after the provided timestamp.

DateTime::Event::Sunrise returns the sunrise/sunset for the provided date.

You should have used 

$obsDate->set_time_zone('Pacific/Auckland');

[download]
instead of 
$obsDate->add(days=>1);

[download]

In reply to Re^2: Trouble with time zones and Sun rise/set by ikegami
in thread Trouble with time zones and Sun rise/set by GrandFather

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