How to format `2022-11-20 21:00:00 0900` to IST-CodePudding

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?

CodePudding user response：

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

CodePudding user response：

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