How Can I Efficiently Populate a Go Array with Available Time Zones for Formatting?

Explore Time Zones in Go: Populating an Array for Time Formatting

Considering the need to populate an array with accepted time zones for time formatting in Go, let's delve into a resourceful approach:

To procure a list of time zones, initiate the following steps:

import (
    "fmt"
    "os"
    "strings"
)

Declare directory paths for diverse operating systems:

var zoneDirs = []string{
    "/usr/share/zoneinfo/",
    "/usr/share/lib/zoneinfo/",
    "/usr/lib/locale/TZ/",
}

Function to recursively read directories and print valid time zones:

func ReadFile(path string) {
    files, _ := os.ReadDir(zoneDir + path)
    for _, f := range files {
        if f.Name() != strings.ToUpper(f.Name()[:1]) + f.Name()[1:] {
            continue
        }
        if f.IsDir() {
            ReadFile(path + "/" + f.Name())
        } else {
            fmt.Println((path + "/" + f.Name())[1:])
        }
    }
}

Execute the program to retrieve a comprehensive list of time zones:

func main() {
    for _, zoneDir = range zoneDirs {
        ReadFile("")
    }
}

This robust technique provides a comprehensive list of time zones that can be effortlessly integrated into HTML templates, empowering users to select and display time in their preferred zone.

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