Updated 22 December 2014
Sunrise/sunset utility for Windows Task Scheduler or cron.
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captainiffy
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I've just released version 0.6. It should handle local time now. The sleep problem on Linux is fixed (I hope); and the code is portable, without editing, on Linux and Windows. New minor-option "gmt/nogmt".
Please let me know if it's broken, or I've misunderstood time in some new way. I still need time to "get over" the Greenwich Prime Meridian being moved 102 and bit metres away from where it should be. [I've repeated this post as I put it in the wrong place previously]
There's a problem with Sunwait's understanding of time. I had assumed that the C gmttime functionality always returns UTC, but (it seems) that it adjusts for daylight savings [it becomes BST, not GMT] so things are a bit out. The localtime functionality does the same, pretty much globally I expect. So - it's a bit broken - although, in my house, it's not been so noticeable since dawn and dusk are not near working hours.
Still working on a fix. I now have a much better understanding of the C/timezone functionality - and have found that the strtime() includes a TZ adjustment number that gives me what I need (fingers crossed).
I've just added the Windows program "sunwait.exe" for your convenience. Unix users please use the makefile (download all files and run 'make').
Hi!
Thx for sunwait, but I have a problem. It works under Win7 x64, but under XP x64 I'm receiving an error when launching "sunwait.exe is not a valid win32 application". Any hint? Thank you.
I've not got XP anymore. I'll have to have a think about it.
This might help: https://www.youtube.com/watch?v=WiOYueQqfDc