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Show HN: Daylight – track sunrise / sunset times in your terminal

(github.com)
79 points jbreckmckye | 1 comments | 09 Mar 25 12:21 UTC | HN request time: 0s | source

I love the sunlight and dread the long, dark winter evenings of Northern Europe. I often look up sunrise / sunset times and count off the days until the darkness is gone.

Now I've written a terminal app for this (Mac/Linux)

Features: a colorful summary of daylight times for your location; projected change over the coming days; handles NO_COLOR and a ---short flag if you dislike the output format.

The location is IP-based but you can override this if you're on a VPN. Just create a terminal alias with the --loc flag. The app supports areas in the arctic / antarctic circle too.

Check our the repository for a preview and instructions on how you can install it with Homebrew.

(There is a Windows build but it's not yet tested)

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voidUpdate ◴[12 Mar 25 15:27 UTC] No.43344274[source]▶
Does this pull the times from an online service or are they calculated locally? I tried to read the code to work it out but I don't program in Go so I got a little lost
replies(1): >>43345846 #
jbreckmckye ◴[12 Mar 25 17:49 UTC] No.43345846[source]▶
It gets your latitude/longitude from an IP lookup service, then does a geometric calculation locally
replies(1): >>43347359 #
jmholla ◴[12 Mar 25 20:30 UTC] No.43347359[source]▶
Is there a configuration file or command line option to provide location information manually?
replies(1): >>43347707 #
1. jbreckmckye ◴[12 Mar 25 21:10 UTC] No.43347707[source]▶
Yes, you can use `--loc="12.34,56.78"` where the values are longitude and latitude.

You can also override the Timezone with `--timezone` (passing an IANA timezone e.g. America/New_York).