38 lines
943 B
Org Mode
38 lines
943 B
Org Mode
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* Sun
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~sun~ wraps [[https://github.com/nathan-osman/go-sunrise][go-sunrise]] to calculate sunrise, sunset, and day length for a location.
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** Usage
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#+begin_src shell
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sun -c LAT,LON [-d YYYY-MM-DD] [-z TIMEZONE] [-f FORMAT]
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#+end_src
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Flags:
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- =-c= — coordinates as =latitude,longitude= (required)
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- =-d= — date in =YYYY-MM-DD= format (default: today)
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- =-z= — timezone (default: UTC)
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- =-f= — output time format, [[https://pkg.go.dev/time#Time.Format][Go reference layout]] (e.g. =15:04= for HH:MM; default: RFC 3339)
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The tool outputs three values: sunrise (time), sunset (time), and day length (duration).
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** Examples
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#+begin_src shell
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$ sun -c 51.4769,0.0005
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2026-10-23T06:37:08Z 2026-10-23T16:51:16Z 10h14m8s
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$ sun -c -77.8419,166.6863 \
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-d 2026-03-20 \
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-z Antarctica/McMurdo \
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-f "15:04"
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07:38 20:23 12h45m28s
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#+end_src
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** Installation
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#+begin_src shell
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go install code.chimeric.al/dwrz/sun/cmd/sun@latest
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#+end_src
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