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From: DrStevenStrange <kubmw2ce@duck.com>
Newsgroups: comp.sys.raspberry-pi
Subject: Re: AI Written Bash Script
Date: Fri, 13 Dec 2024 06:57:08 +0000
Organization: A noiseless patient Spider
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Lawrence D'Oliveiro wrote:
> On Thu, 12 Dec 2024 12:43:14 +0000, DrStevenStrange wrote:
> 
>> ... how can I amend the script so it starts 30 minutes BEFORE sunrise
>> and stops 30  Minutes after?
>> ...
>> SUNRISE_EPOCH=$(date -d "$SUNRISE" +%s)
>> SUNSET_EPOCH=$(date -d "$SUNSET" +%s)
> 
> How about
> 
>      SUNRISE_EPOCH=$(($(date -d "$SUNRISE" +%s) - 1800))
>      SUNSET_EPOCH=$(($(date -d "$SUNSET" +%s) + 1800))
> 

Many thanks