search
HomeBackend DevelopmentGolangHow Can I Get a List of Usable Time Zones for Go\'s time.Format()?

How Can I Get a List of Usable Time Zones for Go's time.Format()?

Getting a List of Usable Time Zones for Go's time.Format()

For providing users a convenient way to select time zones in your applications, you may need to populate a dropdown with a list of valid time zones. This list can be generated with a straightforward method in Go.

Solution:

To obtain a comprehensive list of commonly supported time zones that can be used with the time.Format() function, you can employ the following code:

package main

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

var zoneDirs = []string{
    // Update path according to your OS
    "/usr/share/zoneinfo/",
    "/usr/share/lib/zoneinfo/",
    "/usr/lib/locale/TZ/",
}

var zoneDir string

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

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:])
        }
    }
}

Explanation:

  • This code loops through potential time zone directories to locate valid time zones.
  • It reads the directory contents and ignores entries with mixed casing.
  • If an entry is a directory, it recursively calls the ReadFile function to continue searching.
  • Time zone names are then printed without the leading slash.

Output:

Executing the code will produce a list of time zone names, such as:

Africa/Abidjan
Africa/Accra
Africa/Addis_Ababa
Africa/Algiers
Africa/Asmara
...

You can incorporate this list into your HTML template for a user-friendly time zone selection feature.

The above is the detailed content of How Can I Get a List of Usable Time Zones for Go\'s time.Format()?. For more information, please follow other related articles on the PHP Chinese website!

Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
What is the difference between a package and a module in Go?What is the difference between a package and a module in Go?Apr 30, 2025 pm 02:15 PM

The article discusses packages and modules in Go, explaining their differences and uses. Packages organize source code, while modules manage multiple packages and their dependencies. Word count: 159.

How do you create and use a package in Go?How do you create and use a package in Go?Apr 30, 2025 pm 02:14 PM

The article explains creating and using packages in Go, their benefits like code organization and reusability, managing dependencies with Go modules, and best practices for organizing packages effectively.

How do you range over a channel in Go?How do you range over a channel in Go?Apr 30, 2025 pm 02:12 PM

The article discusses ranging over channels in Go, highlighting its syntax, benefits like simplified syntax and automatic termination, and best practices for safely closing channels. It also covers common pitfalls to avoid.

How do you create a channel in Go?How do you create a channel in Go?Apr 30, 2025 pm 02:11 PM

The article discusses creating and using channels in Go for concurrency management, detailing unbuffered, buffered, and directional channels. It highlights effective channel use for synchronization, data sharing, and avoiding common pitfalls like dea

What is a channel in Go?What is a channel in Go?Apr 30, 2025 pm 02:10 PM

The article discusses channels in Go, a key feature for goroutine communication and synchronization. It explains how channels facilitate safe data exchange and coordination between concurrent goroutines, detailing unbuffered, buffered, directional, a

What are the looping constructs in Go?What are the looping constructs in Go?Apr 30, 2025 pm 02:09 PM

The article discusses Go's looping constructs: for loops, range loops, and while loop equivalents. It highlights the versatility and unique features of Go's for loop compared to other languages and provides best practices for using loops effectively

Logging Errors Effectively in Go ApplicationsLogging Errors Effectively in Go ApplicationsApr 30, 2025 am 12:23 AM

Effective Go application error logging requires balancing details and performance. 1) Using standard log packages is simple but lacks context. 2) logrus provides structured logs and custom fields. 3) Zap combines performance and structured logs, but requires more settings. A complete error logging system should include error enrichment, log level, centralized logging, performance considerations, and error handling modes.

Empty Interfaces ( interface{} ) in Go: Use Cases and ConsiderationsEmpty Interfaces ( interface{} ) in Go: Use Cases and ConsiderationsApr 30, 2025 am 12:23 AM

EmptyinterfacesinGoareinterfaceswithnomethods,representinganyvalue,andshouldbeusedwhenhandlingunknowndatatypes.1)Theyofferflexibilityforgenericdataprocessing,asseeninthefmtpackage.2)Usethemcautiouslyduetopotentiallossoftypesafetyandperformanceissues,

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

WebStorm Mac version

WebStorm Mac version

Useful JavaScript development tools