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How to adjust time zone in Go? Use time.LoadLocation to load the time zone. Use the In method to convert a time to a specified time zone. Use the Format method to format the time into a string. Use the Parse method to parse a time string with time zone information. Get the client time zone in the HTTP request via Header.Get("TimeZone").
#How to adjust time zone in Go?
Preface
In distributed system development, dealing with time zones is very important and the correct time needs to be displayed based on the time zone of the client or server. This article will introduce how to use the time
package built into the Go language to adjust the time zone.
Code Examples
The following are several code examples that demonstrate how to set and adjust time zones in Go:
1. Get the current Time zone
// 获取当前时区 location, err := time.LoadLocation("Local") if err != nil { // 处理错误 }
2. Set time zone
// 设置时区为 UTC location, err := time.LoadLocation("UTC") if err != nil { // 处理错误 }
3. Convert time
// 当前时间转换为 UTC 时区 now := time.Now() nowUTC := now.In(location)
4. Format time string
// 在 UTC 时区内使用 RFC 3339 格式化时间字符串 rfc3339 := nowUTC.Format(time.RFC3339)
5. Parse string based on time zone
// 解析时区为 UTC 的 RFC 3339 格式时间字符串 t, err := time.ParseInLocation("2006-01-02T15:04:05Z07:00", "2023-02-28T10:00:00Z", time.UTC) if err != nil { // 处理错误 }
Practical case
In actual development, you can use the Header.Get("TimeZone")
field in http.Request
to obtain the client's preferred time zone, and then use time.LoadLocation
Load the corresponding time zone and convert the time.
// HTTP 控制器方法 func ServeTime(w http.ResponseWriter, r *http.Request) { // 获取客户端首选时区 timeZone := r.Header.Get("TimeZone") // 加载时区 location, err := time.LoadLocation(timeZone) if err != nil { // 处理错误 } // 获取当前时间并转换到客户端时区 now := time.Now().In(location) fmt.Fprintf(w, "Current time in your time zone: %s", now.Format(time.RFC3339)) }
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