sunrise-sunset | sunset time calculation for given coordinates | Calendar library

You are working much too hard.

Never use the terrible legacy date-time classes such as SimpleDateFormat, TimeZone, Date, and Calendar classes. Use only the java.time classes.

I’m not clear on what format of text you receive. I’ll assume it is standard ISO 8601 format YYYY-MM-DDTHH:MM:SSZ. (If not, edit your Question for clarity.)

The main issue in your code is your day_length data type. You are trying to decode an Int while the data returned is a String. Besides that it is Swift naming convention to use camelCase to name your struct properties. All you need to do to match your json is to set your JSONDecoder object keyDecodingStrategy property to .convertFromSnakeCase. And when printing the decoding error you should print the error not its localizedDescription as already mentioned in comments:

One option using expand.grid to create a dataframe and apply to collapse all rows into a single string.

To convert timezone aware string to python datetime easier to use fromisoformat, since you are getting ISO formatted string from API anyway:

You can't pass the arguments by name because the Python requests library doesn't know what parameters a given URL accepts. The API at sunrise-sunset.org takes lat and lng parameters, but most other APIs would have no use for them. By passing a dictionary of key=value pairs, you tell requests both the names and values of the parameters expected by the specific API you're calling.

You can't change the style of pseudo elements directly. The only way to change it, is to retrieve the stylesheet and change the relevant rule. Here's a snippet that may be a base for further scripting (removed html to present a minimum reproducable example). Note that in the initial css, the background property is set to 'black'.

Also check this JsFiddle.

You can iterate through the dates you want (for all days of a specific month you can use [DateTime]::DaysInMonth(). And then use New-Variable with the -Name paramter to create a dedicated variable for each days - if that's what's needed.

According to API documentation, you can change the date fomat. By using formatted=0 parameter, Get-date will give you the actual time in your time zone.

An option is to convert to POSIXct and then format after doing the transformation