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<blockquote data-quote="MrMad" data-source="post: 285431" data-attributes="member: 12886">Start.se gives me 04:40 to 21:54 (no idea how they are calculating <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile&nbsp; &nbsp; :)" loading="lazy" data-shortname=":)" /> )These are some standards I have found:-0.583°&nbsp; Swedish calendar (center of sun at horizon) gives me 04:47 to 21:48-0.833° International standard (upper limb at horizon) gives me 04:52 to 21:43-6° Civil twilight (can no longer read outside) gives me 03:44 to 22:51-12° Nautical twilight (can not navigate by horizon at sea) gives me... ooops think i found a bug in my plugin when sun goes down after 23:59...-15° Amateur astronomical twilight (can see most stars) -18° Astronomical twilight (totally dark) Basically, I should probably allow an offset in degrees below the horizon.Setting an offset in minutes would not make much sense, since 30 minutes in the summer is quite different from 30 minutes in the winter (unless you live near the equator <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin&nbsp; &nbsp; :D" loading="lazy" data-shortname=":D" />)</blockquote>

[QUOTE="MrMad, post: 285431, member: 12886"] Start.se gives me 04:40 to 21:54 (no idea how they are calculating :) ) These are some standards I have found: -0.583° Swedish calendar (center of sun at horizon) gives me 04:47 to 21:48 -0.833° International standard (upper limb at horizon) gives me 04:52 to 21:43 -6° Civil twilight (can no longer read outside) gives me 03:44 to 22:51 -12° Nautical twilight (can not navigate by horizon at sea) gives me... ooops think i found a bug in my plugin when sun goes down after 23:59... -15° Amateur astronomical twilight (can see most stars) -18° Astronomical twilight (totally dark) Basically, I should probably allow an offset in degrees below the horizon. Setting an offset in minutes would not make much sense, since 30 minutes in the summer is quite different from 30 minutes in the winter (unless you live near the equator :D) [/QUOTE]

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