英文:
How to format `2022-11-20 21:00:00+0900` to IST
问题
我现在是你的中文翻译。以下是翻译好的内容：
我现在有一个时间戳 2022-11-20 21:00:00+0900，我需要将其转换为IST（印度标准时间）。
所以我尝试了以下代码：
loc, _ := time.LoadLocation("Asia/Calcutta")
format := "Jan _2 2006 3:04:05 PM"
timestamp := "2022-11-20 21:00:00+0900"
ISTformat, err := time.ParseInLocation(format, timestamp, loc)
fmt.Println(ISTformat, err)
但是它没有起作用，并显示错误信息 cannot parse。
我需要使用什么类型的Golang时间格式来完成这个转换？
英文:
I have a timestamp 2022-11-20 21:00:00+0900 now I need to convert this to IST.
So I tried this
loc, _ := time.LoadLocation("Asia/Calcutta")
format := "Jan _2 2006 3:04:05 PM"
timestamp := "2022-11-20 21:00:00+0900"
ISTformat, err := time.ParseInLocation(format, timestamp, loc)
fmt.Println(ISTformat, err)
but it was not worked and giving error cannot parse
what type of golang time format i need to use to do this?
答案1
得分: 2
请尝试以下代码：
loc, _ := time.LoadLocation("Asia/Calcutta")
format := "2006-01-02 15:04:05-0700"
timestamp := "2022-11-20 21:00:00+0900"
// ISTformat, _ := time.ParseInLocation(format, timestamp, loc)
// fmt.Println(ISTformat)
parsed_time, _ := time.Parse(format, timestamp)
IST_time := parsed_time.In(loc)
fmt.Println("Time in IST", IST_time)
请注意，你的 format 和 timestamp 应该使用相同的时间格式。
英文:
try the following
loc, _ := time.LoadLocation("Asia/Calcutta")
format := "2006-01-02 15:04:05-0700"
timestamp := "2022-11-20 21:00:00+0900"
// ISTformat, _ := time.ParseInLocation(format, timestamp, loc)
// fmt.Println(ISTformat)
parsed_time, _ := time.Parse(format, timestamp)
IST_time := parsed_time.In(loc)
fmt.Println("Time in IST", IST_time)
note that your format and timestamp should be in same time format
答案2
得分: 0
ParseInLocation类似于Parse，但有两个重要的区别。首先，在没有时区信息的情况下，Parse将时间解释为UTC；ParseInLocation将时间解释为给定的位置。其次，当给定一个区域偏移或缩写时，Parse尝试将其与本地位置匹配；ParseInLocation使用给定的位置。
ParseInLocation的格式如下：
func ParseInLocation(layout, value string, loc *Location) (Time, error)
你可以尝试以下示例代码：
package main
import (
"fmt"
"time"
)
func main() {
loc, _ := time.LoadLocation("Asia/Calcutta")
// 这将在Asia/Calcutta时区中查找名称为CEST的时区。
const longForm = "Jan 2, 2006 at 3:04pm (MST)"
t, _ := time.ParseInLocation(longForm, "Jul 9, 2012 at 5:02am (CEST)", loc)
fmt.Println(t)
// 注意：没有明确的时区时，返回给定位置的时间。
const shortForm = "2006-Jan-02"
t, _ = time.ParseInLocation(shortForm, "2012-Jul-09", loc)
fmt.Println(t)
return
}
你可以阅读GO语言time包的文档了解更多信息。这是链接：https://pkg.go.dev/time#Date
英文:
ParseInLocation is like Parse but differs in two important ways. First, in the absence of time zone information, Parse interprets a time as UTC; ParseInLocation interprets the time as in the given location. Second, when given a zone offset or abbreviation, Parse tries to match it against the Local location; ParseInLocation uses the given location.
**format of ParseInLocation is **
func ParseInLocation(layout, value string, loc *Location) (Time, error)
You try this example
package main
import (
"fmt"
"time"
)
func main() {
loc, _ := time.LoadLocation("Asia/Calcutta")
// This will look for the name CEST in the Asia/Calcutta time zone.
const longForm = "Jan 2, 2006 at 3:04pm (MST)"
t, _ := time.ParseInLocation(longForm, "Jul 9, 2012 at 5:02am (CEST)", loc)
fmt.Println(t)
// Note: without explicit zone, returns time in given location.
const shortForm = "2006-Jan-02"
t, _ = time.ParseInLocation(shortForm, "2012-Jul-09", loc)
fmt.Println(t)
return
}
For more you can read the documentation for time in GO lang time package
This is the link https://pkg.go.dev/time#Date
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